“No wonder he hasn’t answered any of my letters,” Daniel said. “It looks as if the doctor has moved on.” Luce moved toward the bookshelves and dragged her finger across a dusty spine. “Do you think one of these books might contain the desired thing we’re looking for?” Luce asked, pulling one from the shelf: Canzoniere by Petrarch, typeset in Gothic font. “I’m sure Dr. Otto wouldn’t mind us taking a look around if it could help us find the desi—”

She stopped speaking. She’d heard something—the soft croon of a woman’s voice.

The angels eyed one another as another sound reached them in the dark library. Now, in addition to the haunting song, came the clopping sound of shoes and the jangle of a cart being wheeled. Daniel moved to the open doorway and Luce followed, cautiously peering into the hallway.

A dark shadow stretched toward them. Candles flickered in the pink stone alcoves of the curved, tunnellike hallway, distorting the shadow, making its arms look wraithlike and impossibly long.

The shadow’s owner, a thin woman in a gray pencil skirt, a mustard-colored cardigan, and very high black heels, walked toward them, pushing a fancy silver tea tray on wheels. Her fiery red hair was pulled up in a chignon. Elegant golden hoops glittered in her ears.

Something about the way she walked, the way she carried herself, seemed familiar.

As the woman crooned her wordless melody, she lifted her head slightly, casting her profile in shadow against the wall. The curve of the nose, the upward swoop of the chin, the short jut of the brow bone—all gave Luce the feeling of déjà vu. She searched her past for other lives where she might have known this woman.

Suddenly, the blood drained from Luce’s face. All the hair dye in the world couldn’t fool her.

The woman pushing the tea cart was Miss Sophia Bliss.

Before she knew it, Luce had her hands around a cold brass fire poker resting in a stand by the library door. She raised it like a weapon, jaw clenched and heart hammering, and barreled into the hallway.

“Luce!” Daniel called.

“Dee?” Arriane shouted.

“Yes, dear?” the woman said, a second before she noticed Luce charging at her. She jumped just as Daniel’s arm engulfed Luce, holding back her lunge.

“What are you doing?” Daniel whispered.

“She’s—she’s—” Luce struggled against Daniel, feeling his grasp burn her waist. This woman had murdered Penn. She’d tried to kill Luce. Why didn’t anyone else want to kill her?

Arriane and Annabelle ran to Miss Sophia and tackled her in a double hug.

Luce blinked.

Annabelle kissed the woman’s pale cheeks. “I haven’t seen you since the Peasants’ Revolt in Nottingham . . .

when was that, the 1380s?”

“Surely it hasn’t been that long,” the woman said politely, her voice lilting the same kindly-librarian way it had early on at Sword & Cross, when she tricked Luce into liking her. “Lovely time.”

“I haven’t seen you in a while, either,” Luce said hotly. She jerked away from Daniel and raised the fire poker again, wishing it were something more deadly.

“Not since you murdered my friend—”

“Oh dear.” The woman did not flinch. She watched Luce coming at her and tapped a slender finger to her lips. “There must be some confusion.”

Roland stepped forward, separating Luce from Miss Sophia. “It’s just that you look like someone else.” His calm hand on her shoulder made Luce pause.

“What do you mean?” the woman said.

“Oh, of course!” Daniel gave Luce a sad smile. “You thought she was—we should have told you that transeternals often look alike.”

“You mean, she’s not Miss Sophia?”

“Sophia Bliss?” The woman looked as if she’d just bitten into something sour. “That bitch is still around? I was sure someone would have put her out of her misery by now.” She wrinkled her tiny nose and shrugged at Luce. “She is my sister, so I can only display a small per-centage of the rage I have accumulated over the years toward that disgusting bag.”

Luce laughed nervously. The fire poker slipped from her hand and clattered to the floor. She studied the older woman, finding similarities to Miss Sophia—a face that seemed old and young at the same time—and differences. Compared to Sophia’s black eyes, this woman’s small eyes looked almost golden, emphasized by the matching yellow shade of her cardigan.

The scene with the fire poker had embarrassed Luce.

She leaned back against the curved brick wall and sank to the ground, feeling empty, unsure whether she was relieved not to have to face Miss Sophia again. “I’m sorry.”

“Don’t worry, dear,” the woman said brightly. “The day I encounter Sophia again, I’ll grab the nearest heavy object and bludgeon her myself.”

Arriane flung out a hand to help Luce up, pulling her so hard her feet shot off the ground. “Dee’s an old friend.

And a first-class party animal, might I add. Got the me-tabolism of a donkey. She almost brought the Crusades to a grinding halt the night she seduced Saladin.”

“Oh, nonsense!” Dee said, flapping a hand dismissively.

“She’s the best storyteller, too,” Annabelle added.

“Or she was before she dropped off the face of the earth.

Where’ve you been hiding, woman?”

The woman drew a deep breath and her golden eyes dampened. “Actually, I fell in love.”

“Oh, Dee!” Annabelle crooned, clasping the woman’s hand. “How wonderful.”

“Otto Z. Otto.” The woman sniffed. “May he rest . . .”

“Dr. Otto,” Daniel said, stepping out of the doorway.

“You knew Dr. Otto?”

“Backwards and forwards.” The mysterious lady sniffed.

“Oops, my manners!” Arriane said. “We must do introductions. Daniel, Roland, I don’t think you’ve ever officially met our friend Dee—”

“What a pleasure. I am Paulina Serenity Bisenger.” The woman smiled, dabbed her damp eyes with a lace handkerchief, and extended a hand to both Daniel and Roland.

“Ms. Bisenger,” Roland said, “may I ask why the girls call you Dee?”

“Just an old nickname, love,” the woman said, offer-ing the kind of cryptic smile that was Roland’s specialty.

When she turned to Luce, her golden eyes lit up.

“Ah, Lucinda.” Instead of holding out her hand, Dee opened her arms for a hug, but Luce felt funny about accepting it. “I apologize for the unfortunate resemblance that gave you such a fright. I must say that my sister looks like me; I do not look like her. But you and I have known each other so well over many lifetimes, so very many years, I forget that you might not remember. It was to me that you entrusted your darkest secrets—your love of Daniel, your fears for your future, your confusing feelings about Cam.” Luce flushed, but the woman didn’t notice. “And it was to you that I entrusted the very reasons for my existence, as well as the key to everything you seek. You were the one innocent I knew I could always rely upon to do what needed to be done.”

“I—I’m sorry I don’t remember,” Luce stammered, and she was. “Are you an angel?”

“Transeternal, dear.”

“They’re technically mortals,” Daniel explained,

“but they can live for hundreds, even thousands of years.

They have long worked closely with angels.”

“It all started with Great-Granddaddy Methuselah,” Dee said proudly. “He invented prayer. He did!”

“How did he do that?” Luce asked.

“Well, in the old days, when mortals wanted something, they just wished for it in a scattershot manner.

Granddaddy was the first to appeal to God directly, and—here’s the genius part—he asked for a message confirming that he had been heard. God responded with an angel, and the messenger angel was born. It was Gabbe, I think, who carved out the airspace between Heaven and Earth so mortal prayers could flow more freely. Granddaddy loved Gabbe, he loved the angels, and he taught all his kin to love them, too. Oh, but that was many years ago.”

“Why do transeternals live so long?” Luce asked.

“Because we are enlightened. For our family history with messenger angels, and the fact that we are able to receive an angel’s glory without being overcome as many mortals are, we were rewarded with an extended life span. We liaise between angels and other mortals, so that the world can always feel a sense of angelic guardian-ship. We can be killed at any time, of course, but short of assassinations and freak accidents, a transeternal will live on until the end of days. The twenty-four of us who remain are the last surviving descendants of Methuselah.

We used to be exemplary people, but I’m ashamed to say we are in decline. You’ve heard of Elders of Zhsmaelim?”

The mention of Miss Sophia’s evil clan sent a chill through Luce’s body.

“All transeternals,” Dee said. “The Elders began nobly. There was a time when I was involved with them myself. Of course, the good ones all defected”—she glanced at Luce and frowned—“not long after your friend Penn was murdered. Sophia has always had a cruel streak. Now it’s become ambitious.” She paused, taking out a white handkerchief to polish a corner of the silver tea cart. “Such dark things to speak of on our reunion.

There is a bright spot, though: You remembered how to travel through my Patina.” Dee beamed at Luce. “Exemplary work.”

“You made that Patina?” Arriane asked. “I had no idea you could do that!”

Dee raised an eyebrow, the faintest smile on her lips.

“A woman can’t reveal all her secrets, lest she be taken advantage of. Can she, girls?” She paused. “Well, now that we’re all friends again, what brings you to the Foundation? I was just about to sit down for my predawn jasmine tea. You really must join me, I always make too much.”

She stepped aside to reveal the silver tray packed with a tall silver teapot, china plates of tiny crustless cucumber sandwiches, fluffy scones with golden raisins, and a crystal bowl brimming with clotted cream and cherries. Luce’s stomach flopped at the sight of the food.

“So you’ve been expecting us,” Annabelle said, counting the teacups with her finger.

Dee smiled, turned around, and took up wheeling the cart down the hallway again. Luce and the angels jogged to keep up as Dee’s heels clicked along, forking right into a large room made of the same pink brick.

There were a bright fire in the corner, a polished oak dining table that could have seated sixty, and a huge chandelier made of a petrified tree trunk and decorated with hundreds of sparkling crystal candlesticks.

The table was already set with fine china for far more guests than they had in their party. Dee set about filling the teacups with steaming amber-colored tea. “Very casual here, just take a seat wherever you like.” After a few purposeful looks from Daniel, Arriane finally stepped forward and touched Dee—who was scooping a mound of cream into a goblet and topping it with fruit—lightly on the back.