Lena looks forward to receiving the government-mandated cure that prevents the delirium of love and leads to a safe, predictable, and happy life, until ninety-five days before her eighteenth birthday and her treatment, she falls in love.

Throughout the hunt for the 39 Clues, Amy and Dan have encountered some of the darkest aspects of history... and had to deal with the role their family played. But are they ready for the truth? In this thrilling ninth installment, Amy and Dan hit the high seas as they follow the trail of some infamous ancestors to track down a long lost treasure. However, the real prize isn't hidden in a chest. It's the discovery of the Madrigals' most dangerous secret...

A rockslide strands the Aldens on a mountain! But being stuck on Old Flat Top isn't all bad. As the children wait for rescue, they discover that a secret cave has opened up―one that just might hold legendary treasure!

Amy and Dan cross the oceans on the trail of a famous aviator, but they find more than they're looking for. Their enemies are becoming more vicious, and the truths they discover more crushing than ever.

On an island where one child is delivered each year while the eldest is taken away, nine children live under the leadership of new elder Jinny, who trains the latest newcomer and wonders what will happen when her own departure occurs.

Newly orphaned and living with the half sister she hardly knows, twelve-year-old Olive rediscovers her hope when she starts training a guide dog puppy.

After his father's death, seventh-grader Sam West is whisked from Louisiana to Oklahoma, where he discovers a mysterious tree trunk that leads to a world where Pa is still alive.

When two orphans break through the magic shield that is keeping an extraordinary family of monsters safe from those who would do them harm, they are all put in grave danger.

The children, who are spending the summer in a lighthouse on the New England coast, are disturbed by a mysterious woman walking the lighthouse grounds. Jessie's dog Watch wakes up growling almost every evening at midnight, and Henry finds a puzzling note in the sand.

Maeve Merritt, chafing against the rigid rules of her London boarding school, finds her life transformed by the genie she happens upon--and by those who want to steal him.