Help Dink, Josh, and Ruth Rose solve mysteries from A to Z! This collection includes Detective Camp, Mayflower Treasure Hunt, White House White-Out, and Sleepy Hollow Sleepover.

When Mona the Mouse stumbles across the wondrous world of the Heartwood Hotel in the middle of a storm, she desperately hopes they'll let her stay. As it turns out, Mona is precisely the maid they need at the grandest hotel in Fernwood Forest, where animals come from far and wide for safety, luxury, and comfort. But the Heartwood Hotel is not all acorn souffles and soft moss-lined beds. Danger lurks, and as it approaches, Mona finds that this hotel is more than a warm place to spend the night. It might also be a home.

Ben Ripley may only be in middle school, but he's already pegged his dream job: CIA or bust. Unfortunately for him, his personality doesn't exactly scream "secret agent". In fact Ben is so awkward, he can barely get to school and back without a mishap. Because of his innate nerdiness, Ben is not surprised when he is recruited for a magnet school with a focus on science - but he's entirely shocked to discover that the school is actually a front for a junior CIA academy.

The Boxcar Children: Henry, Jessie, Violet, and Benny are orphans. Can they find a home where they can stay together as a family? Surprise Island: The Aldens spend the summer on their own private island. There they meet a new friend with an amazing secret! The Yellow House Mystery: Years ago, a man vanished from the yellow house on Surprise Island. Why? The Aldens have found a clue to the mystery!

Noah, his sister Megan, and their best friends, Richie and Ella, live next door to the zoo. Megan is the first to notice the puzzling behavior of some of the animals. One day Megan disappears, and her brother and their friends realize it’s up to them to find her. Their only choice is to follow a series of clues and sneak into the zoo. But once inside, will they discover there’s much more to the Clarksville City Zoo than they could ever have guessed?