Hiccup the Useless and his dragon Toothless are back, trying to learn sword-fighting at sea in the middle of a storm whipped up by Thor on a bad day. Saved from death at the edge of Snotlout's sword by the indomitable Toothless (who bites his enemy's bum when he can be bothered) and from drowning by a mysterious coffin, the Hairy Hooligan tribe are soon hotly pursuing a fabulous treasure hidden by one of Hiccup's ancestors on an island guarded by terrifying monsters. Once again, Hiccup's brains outwit the deep-laid plots of their enemies... The great jokes and insanely funny drawings go deeper than mere gags. This is the story of how a clever boy in a stupid family not only proves his worth as a real hero but makes his stupid father, Stoic the Vast, realise that he loves his son, and is proud of him. One of the most perfect series to get boys hooked on books, it is strongly recommended.