Gala, a young trans woman, works at a hostel in Truth or Consequences, New Mexico. She is obsessed with the Get Happies, the quintessential 1960s Californian band, helmed by its resident genius, B--. Why did the band stop making music? Why did they never release their rumored album, Summer Fun? Gala writes letters to B-- that shed light not only on the Get Happies, but paint an extraordinary portrait of Gala. The parallel narratives of B-- and Gala form a dialogue about creation-of music, identity, self, culture, and counterculture. Summer Fun is an epic and magical work of trans literature that marks Thornton as one of our most exciting and original novelists.