Narrow Escape — Susan Saunders

Where's Robot? His cage is empty and the door is hanging open. Jason is scared. With all the cats and dogs around, anything could happen to his fat, furry friend.
He knows how jealous Robot was of Tom and Jerry, the two guinea pigs who are the newest members of the fourth grade science corner. Was that enough to make the rabbit hop away or has he met a worse fate? Then a surprise call tips Jason off that if he doesn't move v=fast, it may be curtains for the Bad News Bunny.