At the end of my first two chilly lengths, a frog leapt off the bank almost straight into my face, and others watched me from the water. That they are far outnumbered now by toads is due, I think, to predation of their tadpoles by newts, which much prefer the young of frogs to those of toads. There is no native creature quite so exotic or splendid as the male great crested newt, or eft, as the country people called them, in full display. They are the jesters of the moat, with their bright orange, spotted bellies and outrageous zigzag crests, like something out of a Vivienne Westwood show. I hung submerged in the mask and snorkel, and watched these pond-dragons coming up for air, then slowly sinking back into the deep water, crests waving like seaweed. They are so well adapted to the underwater life, I have to remind myself that they only come to the moat for six or seven months from February to July or August, to reproduce. Then they return to land, where you may not notice them unless you’re a gardener. You dig them up with the potatoes. They hide like bookmarks between old, vertically stacked rooftiles, or entomb themselves in dusty crevices in the brick-pile. Sometimes they even turn up mysteriously in the kitchen in autumn. They look a lot happier in the water.