Finally I recognized a mailbox held aloft by a metal butler that, despite his straight back and snooty expression, appeared to be crying tears of rust. I shouted at Ricky to turn left; the Vic’s tires screeched and I was flung against the passenger door. The impact must’ve jarred something loose in my brain, because suddenly the directions came rushing back to me. “Right at the flamingo orgy! Left at the multiethnic roof Santas! Straight past the pissing cherubs!”

When we turned at the cherubs, Ricky slowed to a crawl and peered doubtfully down my grandfather’s block. There was not a single porch light on, not a TV glowing behind a window, not a Town Car in a carport. All the neighbors had fled north to escape the punishing summer heat, leaving yard gnomes to drown in lawns gone wild and hurricane shutters shut tight, so that each house looked like a little pastel bomb shelter.

“Last one on the left,” I said. Ricky tapped the accelerator and we sputtered down the street. At the fourth or fifth house, we passed an old man watering his lawn. He was bald as an egg and stood in a bathrobe and slippers, spraying the ankle-high grass. The house was dark and shuttered like the rest. I turned to look and he seemed to stare back—though he couldn’t have, I realized with a small shock, because his eyes were a perfect milky white. That’s strange, I thought. Grandpa Portman never mentioned that one of his neighbors was blind.

The street ended at a wall of scrub pines and Ricky hung a sharp left into my grandfather’s driveway. He cut the engine, got out, and kicked my door open. Our shoes hushed through the dry grass to the porch.

I rang the bell and waited. A dog barked somewhere, a lonely sound in the muggy evening. When there was no answer I banged on the door, thinking maybe the bell had stopped working. Ricky swatted at the gnats that had begun to clothe us.

“Maybe he stepped out,” Ricky said, grinning. “Hot date.”

“Go ahead and laugh,” I said. “He’s got a better shot than we do any night of the week. This place is crawling with eligible widows.” I joked only to calm my nerves. The quiet made me anxious.

I fetched the extra key from its hiding place in the bushes. “Wait here.”

“Hell I am. Why?”

“Because you’re six-five and have green hair and my grandfather doesn’t know you and owns lots of guns.”

Ricky shrugged and stuck another wad of tobacco in his cheek. He went to stretch himself on a lawn chair as I unlocked the front door and stepped inside.

Even in the fading light I could tell the house was a disaster; it looked like it’d been ransacked by thieves. Bookshelves and cabinets had been emptied, the knicknacks and large-print Reader’s Digests that had filled them thrown across the floor. Couch cushions and chairs were overturned. The fridge and freezer doors hung open, their contents melting into sticky puddles on the linoleum.

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.