"Ricky Kidd's class has devoted the year to raising money for their trip to New York City. But when the time for the long-awaited trip finally arrives, a well-meaning beneficiary decides to send Ricky's brother, Joel, along, too. After all, how much trouble can a quiet six-year-old be? Plenty. When Joel disappears into downtown Manhattan, he seems to be lost for good. Although the Accidental Detectives do their best to find Joel, it seems that every lead becomes a dead end. The only ones who might be able to help are the street people... but can Ricky really trust them?"

"Ricky Kidd can hardly wait for summer vacation in Montana with his friends Mike and Ralphy. But when his little brother, Joel, is added to the group, Ricky knows their vacation will be anything but restful. Little does Ricky know that before the end of the trip, Joel's presence just might save their lives! Ricky and his friends are mesmerized when they hear the legend of the phantom outlaw. The mysterious disappearance of a woman bank robber more than fifty years ago has never been solved, but a spectral rider is sometimes seen moving across the cliffs. The Accidental Detectives decide to watch for her themselves...but what they encounter is far more than they had reckoned for!"

"The discovery of a treasure map in an old book appears to promise untold riches to Ricky Kidd and the Accidental Detectives. But when other people in town stumble on the map, Ricky and his friends know they must move quickly in order to find Moth-Wallet Bugsby's gold. Decoding the clues to the treasure, however, is more challenging than they expected. Old Mr. Bugsby may have made a map to the treasure, but it seems he had a hidden agenda, too. The search for the gold takes the Accidental Detectives to some unexpected places...and into unexpected dangers!"

"Inconceivable! That's the only word Ricky Kidd can use to describe the crazy invitation sent to his younger brother, Joel. Yet there it is--six tickets for an all-expenses-paid trip to a Mayan archaeological dig. There must be some mistake. At least Ricky knows his parents will never let them go. Right? Finding himself on a flight to Mexico with Joel, the Accidental Detectives, and Old Lady Bugsby is even more inconceivable to Ricky. But that is nothing compared to the mysterious events the group discovers upon their arrival. A chilling mix of ancient curses and rumors of human sacrifices is enough to terrify anyone...But when Joel disappears, Ricky knows he must discover the truth in time to save his brother!"