When Addison's aunt and uncle become pawns in a dangerous gang's plan to steal Genghis Khan's most prized possession, Addison and his friends find themselves in the middle of a multi-million dollar heist and must travel across Asia to try and rescue Addison's family and stop the treasure from falling into the wrong hands.
Budding archeologist Addison Cooke receives a mysterious package that draws the attention of criminals and fortune-hunters from all over the world. Along with his sister, Molly, and friends Raj and Eddie, he flees through cities such as London, Paris, and Istanbul to discover the truth behind the package and learn what really happened to Aunt Delia and Uncle Nigel. But what they find reveals that their aunt and uncle had dangerous secrets.
Told in separate voices, Lena and Aubrey, each hiding their own secrets, set off in search of the truth about Charlie, including if he is really dead, after meeting at his funeral and learning that he was dating both of them.
Anastasia, nearly eleven, is snatched from her elementary school and sent to live at a former insane asylum with two great aunts she had never met after being told that her parents died in a tragic vacuum cleaner accident.
When Linka Perflinger, a jaunty mouse, brings a watch into his shop to be repaired and then disappears, Hermux Tantamoq is caught up in a dangerous search for eternal youth as he tries to find out what happened to her.
Second-grader Flaca investigates three mysteries, from her missing flip flop, to who put a food she is allergic to in her lunch, to how she will find her dancing ability before performing salsa at her sister's quincea?era.
Illustrations and text in English and Spanish, with a repetitive refrain throughout, tell six stories in which children and their families face mysteries in daily life.
While surfing in Hawaii, world-famous Miss Mallard launches into one of her most dangerous cases, one which involves the ownership of sacred land and leads to kidnapping, mistaken identities, bribery, blackmail, and death-defying chases.
When Miss Mallard, the famous ducktective, is invited to Alaska to see the start of the famous dog sled race, her skills are challenged by the dognapping of a prize husky.