12-第五章：前往明日岛(14)

time to avoid being swept up by it. Oh for Thor’s sake! What was that? Whatever-it-was was so well camouflaged that it was invisible, but as it rose up and away from Hiccup, its chameleon body slowly turned from the exact colour of a foggy sky to its own natural colour, a breathtaking sea green. It was a Deadly Shadow, and a Triple-Header Deadly Shadow at that. He could see all of its three heads outlined against the fog. Deadly Shadows were extremely rare, and exceptionally dangerous. Fires electric lightning bolts as well as flames…