“Have you ever had one of their sugar cookies?” Sagan asks. “Nope.” I take a sip of my water. “It’ll change your life.” He hands me the cookie and I take a bite. And then another. It really is the best cookie I’ve ever eaten, but he exaggerated. “When is the life change supposed to happen, exactly? Do I have to eat the whole cookie to get the results?” Sagan narrows his eyes at me. “Smartass,” he says playfully.