Eleven-year-old Ellie has never liked change. She misses fifth grade. She misses her old best friend. She even misses her dearly departed goldfish. Then one day a strange boy shows up. He's bossy. He's cranky. And weirdly enough…he looks a lot like Ellie's grandfather, a scientist who's always been obsessed with immortality. Could this pimply boy really be Grandpa Melvin? Has he finally found the secret to eternal youth? Brilliant scientists like Galileo, Newton, Salk, and Oppenheimer changed the world…but can science ever go too far? With a lighthearted touch and plenty of humor, this book celebrates the wonder of science and explores fascinating questions about life and death, family and friendship, immortality…and possibility.