The Fire Cat by Esther Averill
A favorite from my childhood. In this early reader, a homeless cat named Pickles dreams of doing big things. But instead he spends his time chasing smaller cats up a tree. A kind-hearted lady tries to adopt him, but he runs away from her home. One day, after chasing a smaller cat up a tree, he gets stuck in the tree. The fire department comes to get him down. After speaking with Mrs. Goodkind, the nice lady who tried to help Pickles, the firemen bring Pickles back to the firehouse. There, Pickles finds a home and becomes the fire cat. He helps the firemen and also learns how to be kind to other cats. In the end, he helps rescue other cats from trees. A sweet story that will appeal to young children, as it features both animals and fire trucks.