1

"ALL RIGHT," ROLAND SAID. "Tell me his riddle."

"What about all the people out there?" Eddie asked, pointing across the wide, pillared Plaza of the Cradle and toward the city beyond. "What can we do for them?"

"Nothing," Roland said, "but it's still possible that we may be able to do something for ourselves. Now what was the riddle?"

Eddie looked toward the streamlined shape of the mono. "He said we'd have to prime the pump to get him going. Only his pump primes backward. Does it mean anything to you?"

Roland thought it over carefully, then shook his head. He looked down at Jake. "Any ideas, Jake?"

Jake shook his head. "I don't even see a pump."

"That's probably the easy part," Roland said. "We say he and him instead of it and that because Blaine sounds like a living being, but he's still a machine - & sophisticated one, but a machine. He started his own engines, but it must take some sort of code or combination to open the gate and the train doors."

"We better hurry up," Jake said nervously. "It's got to be two or three minutes since he last talked to us. At least."

"Don't count on it," Eddie said gloomily. "Time's weird over here."

"Still - "

"Yeah, yeah." Eddie glanced toward Susannah, but she was sitting astride Roland's hip and looking at the numeric diamond with a day-dreamy expression on her face. He looked back at Roland. "I'm pretty sure you're right about it being a combination - that must be what all those number-pads are for." He raised his voice. "Is that it, Blaine ? Have we got at least that much right?"

No response; only the quickening rumble of the mono's engines.

"Roland," Susannah said abruptly. "You have to help me."

The daydreamy look was being replaced by an expression of mingled horror, dismay, and determination. To Roland's eye, she had never looked more beautiful ... or more alone. She had been on his shoulders when they stood at the edge of the clearing and watched the bear trying to claw Eddie out of the tree, and Roland had not seen her expression when he told her she must be the one to shoot it. But he knew what that expression had been, for he was seeing it now. Ka was a wheel, its one purpose to turn, and in the end it always came back to the place where it had started. So it had ever been and so it was now; Susannah was once again facing the bear, and her face said she knew it.

"What?" he asked. "What is it, Susannah?"

"I know the answer, but I can't get it. It's stuck in my mind the way a fishbone can get stuck in your throat. I need you to help me remember. Not his face, but his voice. What he said."

Jake glanced down at his wrist and was surprised all over again by a memory of the Tick-Tock Man's catlike green eyes when he saw not his watch but only the place where it had been - a white shape outlined by his deeply tanned skin. How much longer did they have? Surely no more than seven minutes, and that was being generous. He looked up and saw that Roland had removed a cartridge from his gunbelt and was walking it back and forth across the knuckles of his left hand. Jake felt his eyelids immediately grow heavy and looked away, fast.

"What voice would you remember, Susannah Dean?" Roland asked in a low, musing voice. His eyes were not fixed on her face but on the cartridge as it did its endless, limber dance across his knuckles... and back... across... and back...

He didn't need to look up to know that Jake had looked away from the dance of the cartridge and Susannah had not. He began to speed it up until the cartridge almost seemed to be floating above the back of his hand.

"Help me remember the voice of my father," Susannah Dean said.

2

FOR A MOMENT THERE was silence except for a distant, crumping explo-sion in the city, the rain pounding on the roof of the Cradle, and the fat throb of the monorail's slo-trans engines. Then a low-pitched hydraulic hum cut through the air. Eddie looked away from the cartridge dancing across the gunslinger's fingers (it took an effort; he realized that in another few moments he would have been hypnotized himself) and peered through the iron bars. A slim silver rod was pushing itself up from the sloping pink surface between Blaine 's forward windows. It looked like an antenna of some kind.

"Susannah?" Roland asked in that same low voice.

"What?" Her eyes were open but her voice was distant and breathy - the voice of someone who is sleeptalking.

"Do you remember the voice of your father?"

"Yes... but I can't hear it."

"SIX MINUTES, MY FRIENDS."

Eddie and Jake started and looked toward the control-box speaker, but Susannah seemed not to have heard at all; she only stared at the floating cartridge. Below it, Roland's knuckles rippled up and down like the heddles of a loom.

"Try, Susannah," Roland urged, and suddenly he felt Susannah change within the circle of his right arm. She seemed to gain weight . ., and, in some indefinable way, vitality as well. It was as if her essence had somehow changed.

And it had.

"Why you want to bother wit dot bitch?" the raspy voice of Detta Walker asked.

3

DETTA SOUNDED BOTH EXASPERATED and amused. "She never got no better'n a C in math her whole life. Wouldn'ta got dat widout me to he'p her." She paused, then added grudgingly: "An' Daddy. He he'ped some, too. I knowed about them forspecial numbahs, but was him showed us de net. My, I got de bigges' kick outta dat!" She chuckled. "Reason Suze can't remember is 'cause Odetta never understood 'bout dem forspecial numbers in de firs' place."

"What forspecial numbers?" Eddie asked.

"Prime numbahs!" She pronounced the word prime in a way that almost rhymed with calm. She looked at Roland, appearing to be wholly awake again now... except she was not Susannah, nor was she the same wretched, devilish creature who had previously gone under the name of Detta Walker, although she sounded the same. "She went to Daddy cryin an' carryin on 'cause she was flunkin dat math course... and it wasn't nuthin but funnybook algebra at dat! She could do de woik - if I could, she could - but she din' want to. Poitry-readin bitch like her too good for a little ars mathematica, you see?" Detta threw her head back and laughed, but the poisoned, half-mad bitterness was gone from the sound. She seemed genuinely amused at the foolishness of her mental twin.

"And Daddy, he say, Tm goan show you a trick, Odetta. I learned it in college. It he'ped me get through this prime numbah bi'ness, and it's goan he'p you, too. He'p you find mos' any prime numbah you want.' Oh-detta, dumb as ever, she say, 'Teacher says ain't no formula for prime numbahs, Daddy.' And Daddy, he say right back, 'They ain't. But you can catch em, Odetta, if you have a net.' He called it The Net of Eratos-thenes. Take me over to dat box on the wall, Roland - I'm goan answer dat honkey computer's riddle. I'm goan th'ow you a net and catch you a train-ride."

Roland took her over, closely followed by Eddie, Jake, and Oy.

"Gimme dat piece o cha'coal you keep in yo' poke."

He rummaged and brought out a short stub of blackened stick. Detta took it and peered at the diamond-shaped grid of numbers. "Ain't zackly de way Daddy showed me, but I reckon it comes to de same," she said after a moment. "Prime numbah be like me - ornery and forspecial. It gotta be a numbah don't newah divide even 'ceptin by one and its own-self. Two is prime, 'cause you can divide it by one an' two, but it's the only even numbah that's prime. You c'n take out all the res' dat's even."

"I'm lost," Eddie said.

"That's 'cause you just a stupid white boy," Detta said, but not unkindly. She looked closely at the diamond shape a moment longer, then quickly began to touch the tip of the charcoal to all the even-numbered pads, leaving small black smudges on them.

"Three's prime, but no product you git by multiplyin three can be prime," she said, and now Roland heard an odd but wonderful thing: Detta was fading out of the woman's voice; she was being replaced not by Odetta Holmes but by Susannah Dean. He would not have to bring her out of this trance; she was coming out of it on her own, quite naturally.

Susannah began using her charcoal to touch the multiples of three which were left now that the even numbers had been eliminated: nine, fifteen, twenty-one, and so on.

"Same with five and seven," she murmured, and suddenly she was awake and all Susannah Dean again. "You just have to mark the odd ones like twenty-five that haven't been crossed out already." The diamond shape on the control box now looked like this:

"There," she said tiredly. "What's left in the net are all the prime numbers between one and one hundred. I'm pretty sure that's the combi-nation that opens the gate."

"YOU HAVE ONE MINUTE, MY FRIENDS. YOU ARE PROV-ING TO BE A GOOD DEAL THICKER THAN I HAD HOPED YOU WOULD BE."

Eddie ignored Blame's voice and threw his arms around Susannah. "Are you back, Suze? Are you awake?"

"Yes. I woke up in the middle of what she was saying, but I let her talk a little longer, anyway. It seemed impolite to interrupt." She looked at Roland. "What do you say? Want to go for it?"

"FIFTY SECONDS."

"Yes. You try the combination, Susannah. It's your answer."

She reached out toward the top of the diamond, but Jake put his hand over hers. "No," he said. " 'This pump primes backward.' Remember?"

She looked startled, then smiled. "That's right. Clever Blaine... and clever Jake, too."

They watched in silence as she pushed each number in turn, starting with ninety-seven. There was a minute click as each pad locked down. There was no tension-filled pause after she touched the last button; the gate in the center of the barrier immediately began to slide up on its tracks, rattling harshly and showering down flakes of rust from some-where high above as it went.

"NOT BAD AT ALL," Blaine said admiringly. "I'M LOOKING FORWARD TO THIS VERY MUCH. MAY I SUGGEST YOU CLIMB ON BOARD QUICKLY? IN FACT, YOU MAY WISH TO RUN. THERE ARE SEVERAL GAS OUTLETS IN THIS AREA."

4

THREE HUMAN BEINGS (one carrying a fourth on his hip) and one small, furry animal ran through the opening in the barrier and sprinted toward Blaine the Mono. It stood humming in its narrow loading bay, half above the platform and half below it, looking like a giant cartridge - one which had been painted an incongruous shade of pink - lying in the open breech of a high-powered rifle. In the vastness of the Cradle, Roland and the others looked like mere moving specks. Above them, flocks of pigeons -  now with only forty seconds to live - swooped and swirled beneath the Cradle's ancient roof. As the travellers approached the mono, a curved section of its pink hull slid up, revealing a doorway. Beyond it was thick, pale blue carpeting.

"Welcome to Blaine," a soothing voice said as they pelted aboard. They all recognized that voice; it was a slightly louder, slightly more confident version of Little Blaine. "Praise the Imperium! Please make sure your transit-card is available for collection and remember that false boarding is a serious crime punishable by law. We hope you enjoy your trip. Welcome to Blaine . Praise the Imperium! Please make sure your transit-card - "

The voice suddenly sped up, first becoming the chatter of a human chipmunk and then a high-pitched, gabbly whine. There was a brief electronic curse - BOOP! - and then it cut out entirely.

"I THINK WE CAN DISPENSE WITH THAT BORING OLD SHIT, DON'T YOU?" Blaine asked.

From outside came a tremendous, thudding explosion. Eddie, who was now carrying Susannah, was thrown forward and would have fallen if Roland hadn't caught him by the arm. Until that moment, Eddie had held onto the desperate notion that Blaine 's threat about the poison gas was no more than a sick joke. You should have known better, he thought. Anyone who thinks impressions of old movie actors is funny absolutely cannot be trusted. I think it's like a law of nature.

Behind them, the curved section of hull slid back into place with a soft thud. Air began to hiss gently from hidden vents, and Jake felt his ears pop gently. "I think he just pressurized the cabin."

Eddie nodded, looking around with wide eyes. "I felt it, too. Look at this place! Wow!"

He had once read of an aviation company - Regent Air, it might have been - that had catered to people who wanted to fly between New York and Los Angeles in a grander style than airlines such as Delta and United allowed for. They had operated a customized 727 complete with drawing room, bar, video lounge, and sleeper compartments. He imag-ined the interior of that plane must have looked a little like what he was seeing now.

They were standing in a long, tubular room furnished with plush-upholstered swivel chairs and modular sofas. At the far end of the com-partment, which had to be at least eighty feet long, was an area that looked not like a bar but a cosy bistro. An instrument that could have been a harpsichord stood on a pedestal of polished wood, highlighted by a hidden baby spotlight. Eddie almost expected Hoagy Carmichael to appear and start tinkling out "Stardust."

Indirect lighting glowed from panels placed high along the walls, and dependent from the ceiling halfway down the compartment was a chandelier. To Jake it looked like a smaller replica of the one which had lain in ruins on the ballroom floor of The Mansion. Nor did this surprise him - he had begun to take such connections and doublings as a matter of course. The only thing about this splendid room which seemed wrong was its lack of even a single window.

The piece de resistance stood on a pedestal below the chandelier. It was an ice-sculpture of a gunslinger with a revolver in his left hand. The right hand was holding the bridle of the ice-horse that walked, head-down and tired, behind him. Eddie could see there were only three digits on this hand: the last two fingers and the thumb.

Jake, Eddie, and Susannah stared in fascination at the haggard face beneath the frozen hat as the floor began to thrum gently beneath their feet. The resemblance to Roland was remarkable.

"I HAD TO WORK RATHER FAST, I'M AFRAID," Blaine said modestly. "DOES IT DO ANYTHING FOR YOU?"

"It's absolutely amazing," Susannah said.

"THANK YOU, SUSANNAH OF NEW YORK ."

Eddie was testing one of the sofas with his hand. It was incredibly soft; touching it made him want to sleep for at least sixteen hours. "The Great Old Ones really travelled in style, didn't they?"

Blaine laughed again, and the shrill, not-quite-sane undertone of that laugh made them look at each other uneasily. "DON'T GET THE WRONG IDEA," Blaine said. "THIS WAS THE BARONY CABIN -  WHAT I BELIEVE YOU WOULD CALL FIRST CLASS."

"Where are the other cars?"

Blaine ignored the question. Beneath their feet, the throb of the engines continued to speed up. Susannah was reminded of how the pilots revved their engines before charging down the runway at LaGuardia or Idlewild. "PLEASE TAKE YOUR SEATS, MY INTERESTING NEW FRIENDS."