mystery and detective stories

When her boyfriend becomes the fourth student at her high school to die over the course of a year, and Darina starts seeing the dead teenagers, she discovers that they have come back to deal with unresolved problems, and she begins helping them so they can go to their final rest.

Erin's friend, Marcel, is in a coma as a result of a savage beating and Erin decides to track down the person or persons who did it, but she has no clues to get her started.

The Aldens are thrilled to be helping out at Cogwheel Stadium as the Clayton Cogs try to win the pennant, but when the children realize someone has stolen the team's pitching signals and given them to the other team, they set out to find the spy before he ruins the team's chance at victory.

The Aldens are selected to participate in a new game show, and as a camera crew follows them around, they compete with another brother and sister team in search of clues in Philadelphia.

When the Aldens help a friend of their grandfather's to build the world's largest yo-yo, they soon discover that more than one person is trying to prevent them from finishing the job--and for more than one reason.

In 1826 New Mexico, a mysterious stranger arrives at young Josefina's rancho, sparking her curiosity about the legendary gold and silver buried in the nearby hills and a weeping ghost rumored to haunt the countryside. Includes an informational section on this period in New Mexico's history.

The Aldens investigate when a new store called the Game Spot opens in town and the neighboring shops are robbed.

In 1775, Elspeth Monro struggles to adapt to life in North Carolina after leaving behind her native Scotland, but her new-found comfort is shattered by the brewing Revolution.

Nancy, Bess, and George are dismayed when someone destroys their entry in the sand castle contest--and leaves them a threatening message.

Bradley, Brian, Nate, and Lucy visit a haunted hotel on Halloween, but once inside they realize that they have seen plenty of people going in and none coming back out.