Polohas always longed to find his mother. All he remembers is that she was soft and warm and smelled of milk. So when sassy, street-smart Geraldine returns, she isn't exactly the mother he expected. But Polo is still thrilled to have found her and is eager to show her off to his pack of friends in the Club of Mysteries.
As usual, there are many mysteries to be solved. Does the light inside a refrigerator turn off when the door is shut? What is at the top of a church steeple, anyway? But perhaps the most puzzling mystery of all is one Polo cannot figure out: Does his mother truly love...

BEWARE THE HARE
Is he or isn't he a vampire?

Before it's too late, Harold the dog and Chester the cat must find out the truth about the newest pet in the Monroe household -- a suspicious-looking bunny with unusual habits...and fangs

IT'S HAPPENING AGAIN.

The Monroes' kitchen is littered with the remains of vegetables drained of all color. To Chester it's obvious that Bunnicula, the vampire rabbit, is up to his old tricks.

But Harold is more frightened for Bunnicula than of him. The poor bunny doesn't look too good. Is he sick? Or just unhappy? Or has Chester finally gone too far in his attempt to make the world safe for veggies?

One thing's for sure: Harold isn't going to let anything bad happen to his long-eared pal -- even if it means leaving the comfort of his home, losing his best friend, and...