Have Demon, Will Travel — John Brosnan

There's a naked succubus in his bathroom, a fairy tale princess in his kitchen and a foul-mouthed demon in his fridge; Travis Thomson thought that, having returned from Samella (don't ask), his troubles were all over - but discovers that most of them have accompanied him home from that fantasy land to his flat (except the horse, which has turned up in his garden). A whole mess of mishaps just waiting to happen...
But other problems have also arrived from Samella: the vampiric Prince Valerie and his sorcerer sidekick Damion have popped up in London's East End, eager for vengeance. Quickly acquiring a band of loyal followers who vaguely resemble the cast of a cockney soap opera, Prince Val and Damion discover the joys of living in a penthouse and robbing banks. Will they catch up with Travis and his companions before the Old Bill catch up with them?