Mrs. McTats and her cat, Abner, are living happily together when some new cats come scratching at Mrs. McTats's door. By twos and threes, and then fours and more, the cats come, welcomed by Mrs. McTats (though Abner's not so sure about it all!). Just when it seems the house is full to bursting, the cats stop coming. Whew! So many cats! But Mrs. McTats can't help feeling that something -- or someone -- is missing. Then there's one more scratch at the door -- and Mrs. McTats finds just what the family needs to be complete. <P> Alyssa Capucilli's playful rhymes, which surprise with an alphabetic twist, combine with Joan Rankin's hilarious illustrations, which give each cat a distinct personality, to guarantee hours of reading pleasure.