Fragment of the Mutate-O-Tron
You've kept this fragment of Dr. Sebastian Rossi's useless machine as a reminder of the adventure you like to call:
It all started when Darla Mavis begged you to help her restore her lost powers. She had learned of a Longbow investigation into powers drained by Sapper attacks, and she was interested in their finding. You wiped out a Longbow base in your quest for information, but you learned nothing of immediate use. The only nugget of hope in your findings was a name: Sebastian Rossi. According to Longbow's files, Rossi was the only scientist rumored to have any success with the restoration of powers. Unfortunately, he had gone over to the Lost.
You sought out Rossi in the sewers, but the trail there was cold, as well as messy. Rossi was long gone, but you learned from his erstwhile companions that Arachnos had kidnapped him. They, too, were interested in his scientific abilities.
You journeyed to an Arachnos base in Aeon City to extract the good doctor, along with his magnum opus, the Mutate-O-Tron. Alas, the machine had no effect whatsoever. Looking at it, you had a hard time believing it possibly could.
It seemed clear: Rossi's time with the Lost, along with his treatment in Aeon's labs, had driven the once brilliant scientist mad. His scientific abilities were utterly destroyed, along with any legacy he might have left the world. A sentimental person might say it's the kind of tragedy all too common to the harsh life afforded by the Rogue Isles. But a sentimental person probably wouldn't make it this far in the first place.