When the Alden children fix up an old house for senior citizens they investigate some unusual events.

When the Alden children join a group of volunteers to fix up an old house for senior citizens, they try to explain the puzzling behavior of their coworkers as well as investigate some unusual events.

The boxcar Children are helping the Heart and Hands group fix up the old Bugbee Mansion. The Aldens begin to explore the mansion and find a hidden staircase that leads to a mysterious room.

The Aldens start a helper service with their new friend,Beth, to raise money for the Greenfield Hospital! But Beth keeps disappearing when it's time to help. Then someone tears down their signs and lets the air out of their bike tires. Who would want to sabotage their fund-raiser?

New York Times and Publishers Weekly bestseller! In New York Times bestselling author Maureen Johnson’s second novel in the Truly Devious series, there are more twists and turns than Stevie Bell can imagine. No answer is given freely, and someone will pay for the truth with their life. The Truly Devious case—an unsolved kidnapping and triple murder that rocked Ellingham Academy in 1936—has consumed Stevie for years. It’s the very reason she came to the academy. But then her classmate was murdered, and her parents quickly pull her out of school. For her safety, they say. She must move past this obsession with crime. Stevie’s willing to do anything to get back to Ellingham, be back with her friends, and solve the Truly Devious case. Even if it means making a deal with the despicable Senator Edward King. And when Stevie finally returns, she also returns to David: the guy she kissed, and the guy who lied about his identity—Edward King’s son. But larger issues are at play. Where did the murderer hide? What’s the meaning of the riddle Albert Ellingham left behind? And what, exactly, is at stake in the Truly Devious affair? The Ellingham case isn’t just a piece of history—it’s a live wire into the present. * Junior Library Guild Selection * Chicago Public Library's Best of the Best Books of 2019 * Hypable's Best Books of 2019 * Praise for Book One: “The Agatha Christie-like ecosystem pairs with lacerating contemporary wit, and alternating past and present scenes makes for a multilayered, modern detective story.” —New York Times Book Review “Remember the first time reading Harry Potter and knowing it was special? There’s that same sense of magic in the introduction of teen Sherlock-in-training Stevie Bell.” —USA Today (four stars) “Be still, my Agatha-Christie-loving beating heart.” —Bustle

Mystery is in Herculeah Jones’s blood. How could it not be, with a father on the police force and a mother who’s a private eye? So when Herculeah notices a man hanging around the "Dead Oaks" mansion, she can’t resist doing some investigating of her own. Legend has it the old estate was the site of a murder, and now it looks like there’s something even more nefarious going on. Can Herculeah crack the case before the mystery man closes in on her?

A special treat for Nancy Drew fans, and any reader who's new to the series! We're releasing a stunning new edition of an old favorite: The Hidden Staircase, the second book in the incredibly popular, long-running series. It's the same exciting mystery that readers have fallen in love with for more than 80 years—Nancy Drew has to find the mysterious ghost that seems to be haunting Twin Elms, and make sure no more prized possessions disappear under her nose. Now with a brand-new look, this is an edition that collectors won't want to miss!