"You know..." Rivers hesitated and started again. "You must be wary of filling the gaps in your memory with... with monsters. I think we all tend to do it. As soon as we're left with a blank, we start projecting our worst fears on to it. It's a bit like the guide for medieval map-makers, isn't it? Where unknown, there place monsters. (...)
"All right, I'll try not to. I'll substitute the Rivers guide to map-making: where unknown, there place dressing-gowns. Or just possibly, dogs."