The tiny hermit crab loves his new shell. He doesn't want to share it -- not with a blobby purple anenome and a tickly bristleworm. But life in the rock pool proves tougher than Crab thinks, and soon he finds he needs his new housemates in this rollicking story of sea, shells and friendship.A Children’s Bookshelf Selection: Each month our editor’s pick the best books for children and young adults by age to be a part of the children’s bookshelf. These are editorial recommendations made by our team of experts. Our monthly reading list includes a mix of bestsellers and top new releases and evergreen books that will help enhance a child’s reading life.