Nimbus

Fletcher, who is very interested in found objects and making arrows, lives with his weather man father, who also hosts horror movies on the weekends. When his father has to go to a convention, his Aunt Caroline stays with him. Fletcher would rather stay in his room and talk to his cat, Nimbus, whom he rescued as a tiny kitten, but Aunt Caroline thinks he should go outside and meet kids his own age. When an old clay jar that was given to Fletcher opens, a horrible force of evil is unleashed. It takes the form of a hairy goblin and attacks Fletcher, but Nimbus manages to dispatch it, being wounded in the process. Aunt Caroline thinks that Nimbus has hurt her nephew, so puts Nimbus in a box and dumps her quite a ways from their home. There, Nimbus meets Rhett, a rat who isn't afraid of cats. Seeing how badly injured Nimbus is, Rhett suggests that she stay with an old woman near the dump who takes in strays. This seems like a bad idea, especially when Agatha, who is a green witch, doses Nimbus with herbs that make him sleepy after sewing up his wound. The other strays suspect that Nimbus might be the reincarnation of Agatha's familiar, Grimalkin, especially since Nimbus can visit other people's dreams. All the loyal cat wants to do is to return to Fletcher, but there are a lot of supernatural things going on, and Nimbus stays at Agatha's to try to figure some things out. Along with Rhett, she eventually takes off to find Fletcher, but must deal with the rats, who think that she has stolen their Dragon's Eye and means them harm. The Ways of Magic are very strange; will Nimbus be able to figure them out?