The Missing Kitten (Puppy & Kitten Rescue Series) - Holly Webb

Scarlett is excited to be moving to the countryside, especially as it means she will finally get a pet. She chooses Bootle, a ginger kitten with four white socks, and the two of them become inseparable. Then Scarlett has to start at her new school...Bootle tries following Scarlett to school each day. But when there's a downpour, he gets lost. How will Scarlett ever be able to find him when she has no idea where he could be?