Paw-zzle Pieces Clawdeen and her father discover a book from Monster High that may be a clue about her mom's disappearance. Clawdeen, Frankie, and Draculaura go to a library and find a book that was overdue a decade ago. They then discover a puzzle that opens the gate where Clawdeen's necklace must be inserted. However, an unknown creature was unleashed and stole Clawdeen's pendant. To stop the Splitzies from destroying Monster High, the Wolf siblings sing a lullaby and put them all to a machine that will merge them back together...