James, one of Peter's original Lost Boys, is now working for Scotland Yard and suspects that the heir to England's throne, Prince Albert Edward, is under the influence of shadow creatures who are after star stuff hidden in an underground vault which has only one key: the Sword of Mercy. Molly is determined to help, but when she suddenly goes missing, it's up to her eleven-year-old daughter, Wendy, to keep the star stuff out of the creatures' clutches...