A bedtime story guaranteed to bring on the yawns! The Giant Yawn is a story about Max, a nice boy who loves doing things for other people. But Max doesn't think anyone notices his good deeds. He feels unseen, but that won't stop him doing nice things.Then, one day, Max yawns, and before long that yawn has spread through his dog, his parents, his neighbour, online video superstars and eventually maybe, just maybe, Max's yawn will save the whole entire world.And Max doesn't even know it. Later, Max is going for a walk, and he throws some rubbish in a bin ... A new picture book by Adam Wallace, author of the How to Catch series.