In this sequel to "Where Children Gather," what starts out as a family day trip to London to invite Caracticus' twin brother, Bert, to his wedding turns out to be an unexpected adventure when the Potts and Banks kids are kidnapped. Everyone is relying on Julian, the former Child Catcher, to track them down and rescue them before they become the bewitched property of their captor.

When Gina (OC) goes to stay with her grandfather, the toymaker, in Vulgaria to be a runner and tutor for the children hiding beneath the Bomburst castle, she draws the infatuation of the one person who could endanger her mission and everyone involved – the Child Catcher. A romantic comedy sidequel with a delightful intervention from Chitty towards the end.