When Peter and Amy stumble upon a colorful rock while playing at the park, they are introduced to the local painted rock group. Members all over town are painting and hiding rocks for others in the community to find. But all of the rocks hidden at one local park seem to disappear before anyone can find them. Can the Garrison twins help solve the mystery of the missing rocks at Pleasant Park, or will these special works of art be lost forever? Find out in the first title of the series from Small Publishing.