Eighth-grade sports reporters Susan Carol and Stevie reunite at the U.S. Open tennis championships where they investigate the mysterious disappearance of a top Russian player.

Fourteen-year-old Bobby, living in a small Massachusetts town just after World War II, finds himself facing many new challenges as he tries to pull together his coachless basketball team, cope with new feelings for his old friend Joanie, and discover the identity of the mysterious stranger who seems to be threatening his teacher.

When a frightening murder occurs after one of her famous mother's rock concerts, sixteen-year-old Shayley tries to help the police find the killer and to determine whether her long-lost father has some connection to the crime.

When thirteen-year-old Logan and his family move into a run-down old house in rural Virginia, he discovers that a woman was murdered there and becomes involved with his neighbor Arthur in a dangerous investigation to try to uncover the killer.

Ninth-grader Sherman Mack investigates the "Defilers," a secret group at his British Columbia high school that marks certain female students as pariahs, at first because he is trying to protect the girl he has a crush on, but later as a matter of principle.

Fifteen-year-old Matt and his new friend Robin search the globe to retrieve an ancient code--rumored to have brought down the ancient civilization of Atlantis--from the hands of a madman who is bent on destroying the modern world.

Teenage James has forty-eight hours to rescue a kidnapped professor and to keep a powerful weapon from falling into the wrong hands.

The last place fifteen-year-old Juliana wants to be is halfway around the world in Blackthorn, England, an idyllic seaside artists' colony her mother has dragged her off to while her parents weather a trial separation. Juliana misses her father terribly and doesn't understand why her mother needs to travel so far to resurrect her artistic self, which she claims to have lost in the marriage. Soon after they arrive in the tiny village of Blackthorn, the artists' colony is set on its heels by the murder of one of its own. Juliana feels compelled to solve the crime, but she is shocked and frightened when it seems that clues in the matter are hitting a little too close to home. Can she figure out who the murderer is before anyone else--herself included--gets hurt?

Sixteen-year-old Aphra and her mother, a CIA agent, are hiding in France under new identities, but they must go on the run again when their location is discovered by a dangerous criminal.

Sixteen-year-old Aphra Behn Connolly investigates why her father let an unknown family stay at their exclusive tropical island resort, who strangled a famous rock star's girlfriend with her own bikini top, and what a smoldering teenaged guest is hiding.