The Butterfly Kid
Pocket Books 
Synopsis: On his way through a Greenwich Village twenty years into the 1960s, Chester Anderson encounters Sean, a kid from Texas. What makes Sean stand out is his ability to create butterflies out of nothing, in any form he desires. Sean is not alone: other people also demonstrate their ability to make real hallucinations. Eventually, Chester, Michael Kurland and their motley crew of singers, poets, pot heads and general Greenwich Village riffraff track the source of the pills down: Laszlo Scott, the lowest of the low, the sort of person who sells teenagers oregano and deliberately spreads social diseases.