I don't know. I suppose I should have had a better idea of what I was letting myself in for. Still, the first murder - the farmer - seemed to have been so simple, a dropped stone falling to the lakebed with scarcely a ripple. The second one was also easy, at least at first, but I had no inkling how different it would be. What we took for a docile, ordinary weight (gentle plunk, swift rush to the bottom, dark waters closing over it without a trace) was in fact a depth charge, one that exploded quite without warning beneath the glassy surface, and the repercussions of which may not be entirely over, even now.