Bell has spent his whole life--all eleven years of it--on Mars. But he's still just a regular kid--he loves cats and any kind of cake, and is curious about the secrets the adults in the US colony are keeping. Like, why don't they have contact with anyone on the other Mars colonies? Why are they so isolated? When a virus breaks out and the grown-ups all fall ill, Bell and the other children are the only ones who can help. It's up to Bell--a regular kid in a very different world--to uncover the truth and save his family...and possibly unite an entire planet.

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.

In Jennifer L. Holm's New York Times bestselling, Newbery Honor winning middle grade historical fiction novel, life isn't like the movies. But then again, 11-year-old Turtle is no Shirley Temple. She's smart and tough and has seen enough of the world not to expect a Hollywood ending. After all, it's 1935 and jobs and money and sometimes even dreams are scarce. So when Turtle's mama gets a job housekeeping for a lady who doesn't like kids, Turtle says goodbye without a tear and heads off to Key West, Florida to live with relatives she's never met. Florida's like nothing Turtle's ever seen before though. It's hot and strange, full of rag tag boy cousins, family secrets, scams, and even buried pirate treasure! Before she knows what's happened, Turtle finds herself coming out of the shell she's spent her life building, and as she does, her world opens up in the most unexpected ways. Filled with adventure, humor and heart, Turtle in Paradise is an instant classic both boys and girls with love.

Sunny Lewin has been packed off to Florida to live with her grandfather for the summer. At first she thought Florida might be fun -- it is the home of Disney World, after all. But the place where Gramps lives is no amusement park. It's full of . . . old people. Really old people.Luckily, Sunny isn't the only kid around. She meets Buzz, a boy who is completely obsessed with comic books, and soon they're having adventures of their own: facing off against golfball-eating alligators, runaway cats, and mysteriously disappearing neighbors. But the question remains -- why is Sunny down in Florida in the first place? The answer lies in a family secret that won't be secret to Sunny much longer. . .

NEW YORK TIMES bestselling, three-time Newbery Honor winning author Jennifer Holm teams up with Matthew Holm to bring you a fully illustrated graphic novel series packed with humor and kid appeal—BABYMOUSE! It's the same thing every day for Babymouse. Where is the glamour? The excitement? The fame?!? Nothing ever changes, until…Babymouse hears about Felicia Furrypaws's exclusive slumber party. Will Babymouse get invited? Will her best friend, Wilson, forgive her if she misses their monster movie marathon?