Shelly has the most beautiful rainbow shell. Until one day she notices that it is getting too small for her. It feels uncomfortable and she is growing in ways she never has before and doesn’t understand. Then there are all the mixed up, big feelings that don’t make any sense either. Shelly feels completely out of control. All the changes are frightening.What Shelly doesn’t understand is that this is something that happens to all little crabs as they grow older.A story for young girls who start to go through puberty early.