The next morning, Duke awakens to an exorbitant room service bill, and no sign of Gonzo (who has returned to Los Angeles while Duke slept), and attempts to leave town. As he nears Baker, California, a patrolman stops him for speeding, and advises him to sleep at a nearby rest stop. Duke instead heads to a payphone and calls Gonzo, learning that he has a suite in his name at the Flamingo Las Vegas so he can cover a district attorney’s convention on narcotics. Duke checks into his suite, only to be met by an LSD-tripping Gonzo and a young girl called Lucy, who Gonzo explains has come to Las Vegas to meet Barbra Streisand, and that this was her first LSD trip. Duke convinces Gonzo to ditch Lucy in another hotel before her trip wears off.
Gonzo accompanies Duke to the convention, and the pair discreetly snort cocaine as the guest speaker delivers a comically out-of-touch speech about “marijuana addicts” before showing a brief film. Unable to take it, Duke and Gonzo flee back to their room, only to discover that Lucy has called. Their trips mostly over, Gonzo deals with Lucy over the phone (pretending that he is being savagely beaten by thugs) as Duke attempts to mellow out by trying some of Gonzo’s stash of adrenochrome. However, the trip spirals out of control, and Duke is reduced to an incoherent mess before he blacks out.