During the events of In Shut Up, I Look Great (1.11) the Dragon Friends run afoul of a massive Black Dragon controlled by Davin Tyrril and the Grand Inquisitor. The party is only able to escape when Dilge sacrifices himself and is bitten clean in half by the dragon's massive jaws.
It is revealed in I Step Into the Moonlight (1.13) that Davin is using a magical collar to control the dragon, who is named Gabu'strath. They had previously encountered a prototype of this collar but did not know what it did. Seamus Noggin is able to remove this device after Davin is killed and this returns him to his senses. Gabu'strath decides to spare the Dragon Friends on account of them having killed his captor and freed him.
- Dragon was sometimes referred to as "red"