When Lizzie and Gael share an irresistible challenge, to find the peacock ring that once belonged to artist Frida Kahlo, Paloma decides it is the perfect way to honor her father.

A little boy offers advice to his cat, which is lost in the city, from taking shortcuts through safe alleys to finding a friend in the park.

Eight-year-old Lucas, Prince of Wrenly, is eager to explore and Clara, daughter of the queen's seamstress, knows the kingdom well, so they team up to find a lost jewel and visit all of the land's main attractions as they search.

After a car accident strands them at opposite ends of the Blue Ridge Parkway, eleven-year-old Abby and her beloved sheltie Tam overcome months filled with physical and emotional challenges to find their way back to each other.

During Spring Break, mystery lover Amy looks for clues to the disappearance of wealthy Ms. Sullivan's Saint Bernard puppy.

With her kitten, Moisturizer, missing and having fought with her best friend, Margaret, eight-year-old Clementine finds it hard to concentrate on doing her best as her classmate's Friend of the Week.

Meena quickly joins the hunt for her friend Sofía's missing cat Oriol, but finds her friendship skills tested when Meena learns that Sofía and her family may be moving away.

The Alden siblings continue their mission to return lost artifacts around the world to their rightful homes by visiting the Pyramids in Egypt and Stonehenge in England, among other places, while outwitting a thief along the way.

Told from three viewpoints, teens Doris, Nell, and Grant find friendship and the possibility of love while working in Unclaimed Baggage, a store that sells items that went missing during airline travel. Doris has mostly kept to herself since the terrible waterslide incident a few years ago. Nell had to leave behind her best friends, perfect life, and too-good-to-be-true boyfriend in Chicago to move to Alabama. Grant was the star quarterback whose...

WINNER OF THE STONEWALL BOOK AWARD! Thor's hammer is missing again. The thunder god has a disturbing habit of misplacing his weapon--the mightiest force in the Nine Worlds. But this time the hammer isn't just lost. It has fallen into enemy hands. If Magnus Chase and his friends can't retrieve the hammer quickly, the mortal worlds will be defenseless against an onslaught of giants. Ragnarok will begin. The Nine Worlds will burn. Unfortunately, the...