Disco took their wallets and used their credit cards to pay for the repairs to his bar. He also found an unused vial of the green powder they had been snorting and gave it to Fire of Saturn to analyze. Meanwhile, they talked to Officer Vic Broyko, who told them that there had been several incidents of violence involving this new drug, known as MUT-8 (pronounced like "mutate"). He believed it was being smuggled in from Canada.
The next morning, Fire of Saturn called the others in to have a look at her discovery. By trying the drug out on several tanks of guppies from the aquarium upstairs (she would have preferred rats, but couldn't get them on short notice), she had discovered that, rather than developing a tolerance, users became susceptible to a wider range of effects with continual usage. At first, MUT-8 produces a stimulant high with some increased aggression, followed by a period of blissful docility. As usage continued, the drug led to more aggression, and finally transformation. In the case of the guppies, the result was a primitive, spiny sea monster. With humans, of course, you get hulks. She said MUT-8 was not so much a drug, but a kind of live bacterial spore that colonized the host's body. It resembled in many ways the infection of the Gauntlet equipment from Karza's troops.
Calling in a favor with the Beta City police, Disco got himself and Landshark into an interview with the prisoners. Utilizing questionable but effective interrogation techniques, they found out that the drugs came from someone called, "Rudy the Troll" who could be found on a big bridge in the Blight on Lightfoot Island. Knowing something about the area from his youth, Landshark pointed out that there couldn't be too many big bridges still intact, so they already had a good idea where to look.
They found an old suspension bridge across a gorge. Once, a river had gone through it, but now it was full of stagnant water. The bridge itself, while intact, was only attached to its original road at one end. The other had slid down the cliff wall to a ledge below. A crevice in that ledge promised cavernous realms beyond. Noticing that there were no other light sources, Disco rainbowed up and they moved on.
Not far in, they encountered a couple of hulked-up guards. These were a bit harder to beat than the party hulks in the bar, but they still went down. Farther in, they found a big round door. They knocked and Landshark shouted "pizza!" to which a gruff voice from beyond said, "I didn't order a pizza!" They tried a couple of others. I think it came down to Disco shouting "male escort" and being surprised that the answer was, "Come in!" Landshark still shouted, "Candygram!" and punched down the door, though.
Recognizing that he had an opportunity to play the seductive spy, Disco went to work trying to coax the information they wanted out of Rudy. He was happy to tell them that he didn't make the MUT-8 himself, but felt professionally constrained not to reveal his supplier. It took multiple attempts, finally throwing in Landshark, who added, "I can be a bad shark, or a very bad shark," before the Troll caved and told them what they wanted to know. Then Disco dazzle-blasted him into semi-conscious euphoria flew him off to the police.
The drugs were coming from part of the Forbidden Zone that used to be Texas, so they needed transportation. Fire of Saturn patched up the previously glitchy autopilot and they were off in the Scrapjet. Not far into the Forbidden Zone, they were confronted by a hornetroid. Disco and Landshark ejected to fight it and eventually managed to disable the bio-mechanical monster. Landshark was a little grossed out to learn that it had blood.
Once they reached their designated coordinates, they saw a settlement with several aluminum buildings and smokestacks surrounded by a wooden palisade. The guard towers were manned by gauntlet soldiers. Disco set the autopilot for the center of the settlement, grabbed Landshark, and bailed out. The Scrapjet made its heroic final voyage, despite the attempts of the gauntlet soldiers to shoot it down, and exploded in a terrifying fireball of burning jet fuel and illegal radioactive power boosters (Fire of Saturn is not the most reputable of mechanics), killing everyone there and melting all their stuff.
Disco said, "There weren't any real people down there, right?"