Describes the lives of lobsters, in simple text and photographs, explaining what they are, looking at the parts of a lobster, and showing what they do under the sea.
Graeme is excited about the money that the enormous lobster his father caught could bring in at the auction during the town's annual lobster festival, but even though Graeme likes the idea of using the profit to go to a marine research aquarium with his dad, he begins to wonder if the right thing would be to set the lobster free.
Lobster emerges from his rocky hiding place off the Maine coast and prowls for dinner while watching for predators, a task made even more difficult after he molts.