travis ventures with a group of two others to the four specific entry points in the underground water systems ( he has to venture down there personally as hes the only one with any baring of the labyrinthine sewer system , as well as the only person able to use the piece of equipment hes modified to get through specific seal breaks in each individual buildings water filtration system and administer into each one a single fluid ounce of the thick pink liquid steve had synthesized in the drexel lab ( with my help ) : its a compound that , when diluted with water , boiled , then drank , would result in a sleeplike paralysis within an hour ; that , coupled with travis finding the water passageways from the public works building , and we were administering a sedative into the water supply .