Sea and river folklore

I found this picture on the Facebook page of the Wallingford Bookshop, maybe my favourite independent bookshop in England. It is advertising Treasury of Folklore: Seas&Rivers, which I now really, really want to get my hands on. I already bought (in the Wallingford Bookshop, incidentally, like many other books of folklore I have) A Treasury of British Folklore, in the same collection. I really enjoyed it and it would just make sense to have this one as well. I mean, how can you resist such cover?