I remember as a child in the 1970s reading a fascinating book about the Lambton Worm, and other Worms and legends. I don't know if this would have been "Albion: A Guide to Legendary Britain" by Jennifer Westwood mentioned by Fiolar on here, as when I looked it up it says published in 1987? I'd love to find the book I read, if anyone can shed any light on this I'd be grateful!