"We sat out there in silence for a minute and then Gus said, " I wish we had that swing set sometimes." "The one from my backyard?" "Yeah. My nostalgia is so extreme that I am capable of missing a swing my butt never actually touched." "Nostalgia is a side effect of cancer," I told him. "Nah, nostalgia is a side effect of dying," he answered. Above us, the wind blew and the branching shadows rearranged themselves on our skin. Gus squeezed my hand. "It is a good life, Hazel Grace."