Book Description: Move over Tom and Jerryâ€”thereâ€™s a new cantankerous pair ready to tickle funny bones! Mr. Cat and Mr. Rat have always enjoyed playfully torturing each other, so when Mr. Rat finds a package from Mr. C, he is understandably suspicious. But when it turns out to be a huge hunk of cheese (that isnâ€™t poisonous), Mr. Rat is thrilled and reciprocates with a nice gift for Mr. Cat. This leads to a string of gifts going back and forth, but the "friends" are always at least a little cautious each time they get a package. Itâ€™s hard to tell when one might contain a not-so-nice surprise. . . .