Batman: Time Thaw By (author): "Robin Wasserman, Jesse Leon McCann"Genres:Kids books ISBN0613719956ISBN139780613719957AsinBatman: Time ThawOriginal titleBatman: Time Thaw (Scholastic Reader)Dangerous mastodons, giant sloths, and woolly mammoths have come alive and invaded Gotham City. Can Batman keep his cool when he encounters the criminal Mister Freeze? Full color.