My heart sank. Grandpa Portman had really, finally lost his mind. I called his name—but heard nothing.

I went from room to room, turning on lights and looking anywhere a paranoid old man might hide from monsters: behind furniture, in the attic crawlspace, under the workbench in the garage. I even checked inside his weapons cabinet, though of course it was locked, the handle ringed by scratches where he’d tried to pick it. Out on the lanai, a gallows of unwatered ferns swung browning in the breeze; while on my knees on the astroturfed floor I peered beneath rattan benches, afraid what I might discover.

I saw a gleam of light from the backyard.

Running through the screen door, I found a flashlight abandoned in the grass, its beam pointed at the woods that edged my grandfather’s yard—a scrubby wilderness of sawtoothed palmettos and trash palms that ran for a mile between Circle Village and the next subdivision, Century Woods. According to local legend, the woods were crawling with snakes, raccoons, and wild boars. When I pictured my grandfather out there, lost and raving in nothing but his bathrobe, a black feeling welled up in me. Every other week there was a news story about some geriatric citizen tripping into a retention pond and being devoured by alligators. The worst-case scenario wasn’t hard to imagine.

I shouted for Ricky and a moment later he came tearing around the side of the house. Right away he noticed something I hadn’t: a long mean-looking slice in the screen door. He let out a low whistle. “That’s a helluva cut. Wild pig coulda done it. Or a bobcat maybe. You should see the claws on them things.”

A peal of savage barking broke out nearby. We both started then traded a nervous glance. “Or a dog,” I said. The sound triggered a chain reaction across the neighborhood, and soon barks were coming from every direction.

“Could be,” Ricky said, nodding. “I got a .22 in my trunk. You just wait.” And he walked off to retrieve it.

The barks faded and a chorus of night insects rose up in their place, droning and alien. Sweat trickled down my face. It was dark now, but the breeze had died and somehow the air seemed hotter than it had all day.

I picked up the flashlight and stepped toward the trees. My grandfather was out there somewhere, I was sure of it. But where? I was no tracker, and neither was Ricky. And yet something seemed to guide me anyway—a quickening in the chest; a whisper in the viscous air—and suddenly I couldn’t wait another second. I tromped into the underbrush like a bloodhound scenting an invisible trail.

It’s hard to run in a Florida woods, where every square foot not occupied by trees is bristling with thigh-high palmetto spears and nets of entangling skunk vine, but I did my best, calling my grandfather’s name and sweeping my flashlight everywhere. I caught a white glint out of the corner of my eye and made a beeline for it, but upon closer inspection it turned out to be just a bleached and deflated soccer ball I’d lost years before.

I was about to give up and go back for Ricky when I spied a narrow corridor of freshly stomped palmettos not far away. I stepped into it and shone my light around; the leaves were splattered with something dark. My throat went dry. Steeling myself, I began to follow the trail. The farther I went, the more my stomach knotted, as though my body knew what lay ahead and was trying to warn me. And then the trail of the flattened brush widened out, and I saw him.

My grandfather lay facedown in a bed of creeper, his legs sprawled out and one arm twisted beneath him as if he’d fallen from a great height. I thought surely he was dead. His undershirt was soaked with blood, his pants were torn, and one shoe was missing. For a long moment I just stared, the beam of my flashlight shivering across his body. When I could breathe again I said his name, but he didn’t move.

I sank to my knees and pressed the flat of my hand against his back. The blood that soaked through was still warm. I could feel him breathing ever so shallowly.

I slid my arms under him and rolled him onto his back. He was alive, though just barely, his eyes glassy, his face sunken and white. Then I saw the gashes across his midsection and nearly fainted. They were wide and deep and clotted with soil, and the ground where he’d lain was muddy from blood. I tried to pull the rags of his shirt over the wounds without looking at them.

I heard Ricky shout from the backyard. “I’M HERE!” I screamed, and maybe I should’ve said more, like danger or blood, but I couldn’t form the words. All I could think was that grandfathers were supposed to die in beds, in hushed places humming with machines, not in heaps on the sodden reeking ground with ants marching over them, a brass letter opener clutched in one trembling hand.

A letter opener. That was all he’d had to defend himself. I slid it from his finger and he grasped helplessly at the air, so I took his hand and held it. My nail-bitten fingers twinned with his, pale and webbed with purple veins.

“I have to move you,” I told him, sliding one arm under his back and another under his legs. I began to lift, but he moaned and went rigid, so I stopped. I couldn’t bear to hurt him. I couldn’t leave him either, and there was nothing to do but wait, so I gently brushed loose soil from his arms and face and thinning white hair. That’s when I noticed his lips moving.

His voice was barely audible, something less than a whisper. I leaned down and put my ear to his lips. He was mumbling, fading in and out of lucidity, shifting between English and Polish.

“I don’t understand,” I whispered. I repeated his name until his eyes seemed to focus on me, and then he drew a sharp breath and said, quietly but clearly, “Go to the island, Yakob. Here it’s not safe.”

It was the old paranoia. I squeezed his hand and assured him we were fine, he was going to be fine. That was twice in one day that I’d lied to him.

I asked him what happened, what animal had hurt him, but he wasn’t listening. “Go to the island,” he repeated. “You’ll be safe there. Promise me.”

“I will. I promise.” What else could I say?

“I thought I could protect you,” he said. “I should’ve told you a long time ago …” I could see the life going out of him.

“Told me what?” I said, choking back tears.

“There’s no time,” he whispered. Then he raised his head off the ground, trembling with the effort, and breathed into my ear: “Find the bird. In the loop. On the other side of the old man’s grave. September third, 1940.” I nodded, but he could see that I didn’t understand. With his last bit of strength, he added, “Emerson—the letter. Tell them what happened, Yakob.”