Tom examined me with mild surprise, and I realized there had been a bite to my voice. “Well, yeah. I mean, I can’t even swear anything was ever in here, so nothing’s a deal breaker; it’s all hypothetical, yeah? I’m just saying which pieces could fit where.”

“Great. And plenty of them fit with a mink. Any other possibilities?”

“Your other maybe is an otter. The sea’s right there, and they’ve got massive territories, so one of them could live down on the beach and count this house as part of his range. They’re big buggers, too, like two or three feet long, maybe twenty pounds: an otter could’ve left those marks on the beam, and he might’ve needed to enlarge that access hole. And they can get kind of playful, so those rolling noises would make sense—if it found, like, one of those candleholders or those kiddie toys or something, and it was batting it around the attic floor …”

“Three feet, twenty pounds,” I said, to Richie. “Running around your home, right above your kids. That sounds like something that could get a reasonable, sane guy fairly worried. Am I right?”

“Whoa,” Tom said placidly, holding up his hands. “Slow down. It’s not, like, a perfect fit. Otters scent-mark, all right, but they do it with droppings, and your guy didn’t find any. I had a nose around, and I can’t see any either. None in the attic, none under the attic floor, none in the garden.”

Even outside the attic, the house felt restless, infested. The wall at my back, the thought of how thin the plaster was, made me itch. I said, “And I didn’t smell anything, either. Did you?” Richie and Tom shook their heads. “So maybe it wasn’t droppings that Pat smelled: it was the otter itself, and now it hasn’t been around in a while, so the scent’s faded.”

“Could be. They smell, all right. But … I don’t know, man.” Tom squinted off into the distance, working one finger in between the dreadlocks to scratch his scalp. “It’s not just the scent thing. This whole deal, this isn’t otter behavior. End of story. They’re seriously not climbers—I mean, I’ve heard of otters climbing, but that’s like headline news, you know what I mean? Even if it did, something that size going up and down the side of a house, you’ve gotta figure it’ll get seen. And they’re wild. They’re not like rats or foxes, the urbanized stuff that’s OK with living right up against humans. Otters stay away from us. If you’ve got an otter here, he’s a fucking weirdo. He’s the one that the other otters tell their cubs to stay out of his garden.”

Richie tilted his chin at the hole above the skirting board. “You’ve seen these, yeah?”

Tom nodded. “Freaky or what? The vics had the whole place this fancy, all their shit matched, but they were OK with massive holes in their walls? People are weird.”

“Could an otter have made those? Or a mink?”