frobisher travelled with the doctor for quite a long time, occasionally parting company only for their paths to cross once again. when he first came on board the tardis, the sixth doctor was travelling alone, but in "kane's story" (dwm #104), the sixth doctor's television companion peri brown returned, apparently placing frobisher's stories between the unmade season 23 and "the trial of a time lord" (indicated by peri's changing hairstyles in the comic strip compared to her television appearances). frobisher appears, travelling with the doctor and peri, in idw's 50th anniversary comic book miniseries "doctor who: prisoners of time "#6. this appearance was illustrated by john ridgway. at the conclusion of this issue, it was revealed that frobisher had been contacted by the tenth doctor while he was in the tardis on his own earlier, the tenth doctor asking frobisher to pose as peri so that he could be captured by the mysterious foe abducting past companions, the assumption that he was peri causing their foes not to take greater care when securing frobisher. when their adversaries - revealed to be the ninth doctor's ex-companion adam mitchell and the master - attempted to kill the captured companions, frobisher revealed that he had replaced the detonator mitchell would have used, subsequently releasing his fellow companions from their imprisonment to help the doctors fight off adam and the master's auton army until they could convince adam to help them against the master.