Jason Krystovan remembers a promise that he made to Dorian centuries before while he was a time traveler. The man he returns to finds in 21st century Earth is not the one he expects, nor is he where he expects. Eroica.Doctor Who crossover.of sorts

The discovery of an alien craft buried in a glacier in Iceland triggers a race between UNIT, NATO and the KGB to see which agency can recover it first, even if it means killing to do so. This is a Doctor Who.Eroica crossover & sequel. 4th Doctor

The Major is assigned as contact person to cooperate with UNIT in the recovery of stolen items that are more than just art. This is a Doctor Who.Eroica Crossover story, but don't let that throw you! The Fourth Doctor