Peg and Cat are in the bath. One, two friends in the bath. Seems like a great time to do some math Readers can join old friends Peg and Cat as they engage with the concepts of counting and weight and directional terms such as under, over, and across. How many rocks will sink their boat? When Bug and Worm join the fun, how many are in the bath? Short, repetitive lines and gentle addition and subtraction will make a splash with new and early readers.