A mysterious suited individual appears at the door and hands Diggs an egg bomb, prompting a chase through the city streets, during which the shadowy figure gets away.
Diggs decides to head to the Frying Pan, a jazz club owned by Humpty, to see his girlfriend Itsy Bitsy in hopes of getting a new lead.
After a car chase in which a few pieces of Humpty loose, but not in catching the shadow, Diggs heads to other parts of Library City to collect the missing shell fragments including the Pirates' Wharf, where he finds that L.J.
The three heroes chase Itsy through the castle in an extended gunfight at the end of which the three little pigs reappear to arrest Diggs, but Humpty sets them straight.
After Dumpty and the pigs are left unable to continue, Diggs and the player make their way to the top of the tower where, after a brief scuffle over the book, whose myriad mismatched contents are quickly spiralling out of control, Itsy falls into the waterspout and is flushed down to her apparent demise.
In an article for The Telegraph, Andy Robertson gave the game a positive review, praising its improvements over Book of Spells in both plot substance and more active use of the Wonderbook peripheral.
He also stated that the Wonderbook games, along with titles such as Invizimals, The Unfinished Swan and Tumble, are helping Sony "[hit] the family market previously dominated by Nintendo.