frobisher has occasionally appeared alongside the sixth doctor in spin-off media. these include a novel, "" by david a. mcintee and two big finish productions audio plays, "the holy terror" and "the maltese penguin", both written by rob shearman and featuring robert jezek as frobisher. "maltese penguin" also featured dogbolter (toby longworth) and francine (jane goddard). these audio adventures take place between the stories "the world shapers" and "the age of chaos".