Believe in the possible … with this New York Times bestseller by three-time Newbery Honor winner Jennifer L. Holm. A perfect read about a child’s relationship with her grandfather!

Galileo. Newton. Salk. Oppenheimer. Science can change the world … but can it go too far?

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 slightly obsessed with immortality. Could this gawky teenager really be Grandpa Melvin? Has he finally found the secret to eternal youth?

With a lighthearted touch and plenty of humor, Jennifer Holm celebrates the wonder of science and explores fascinating questions about life and death, family and friendship, immortality … and possibility. Look for EXCLUSIVE NEW MATERIAL in the paperback-including Ellie’s gallery of scientists and other STEM-appropriate features.

And don’t miss the much-anticipated sequel, The Third Mushroom!

Warm, witty, and wise. -The New York Times

* Written in a clean, crisp style, with lively dialogue and wit, this highly accessible novel will find a ready audience. -Booklist, Starred

* Top-notch middle-grade fiction. -Publishers Weekly, Starred

* Ellie’s memorable journey into the world of science will inspire readers to explore the world around them and celebrate the possible. -Shelf Awareness, Starred

Awesomely strange and startlingly true-to-life. It makes you wonder what’s possible. -Rebecca Stead, Newbery Medal-winning author of When You Reach Me

25 STATE AWARD LISTS including the Sunshine State!