Books with title Mystery of the Missing Necklace

The secret device has gone missing! Isabelle Jones and her sister, Kathryn must race against time to find the villain, Dr. Sinister who has stolen the F-143, a very important secret device from S.P.Y. (Sisters Protecting You), a top secret agency dedicated to protecting the world against super villains. If activated, it will destroy the world. Their mission takes them to the beautiful city of Paris, where they must find Dr. Sinister’s hideout and put an end to his evil plans. Will the sisters be able to stop him before it is too late?

Meet Gabriella the middle school worrywart. She’s afraid of everything! God gives her the opportunity to become courageous when she receives a special gift from her grandmother, a glimpse into the past. Grandma allows Gabriella and her cousin Catherine to search through an old trunk in the attic. They discover antique items that belonged to their ancestors. One in particular catches Gabriella’s eye. It’s a necklace. While the family travels through Italy, Gabriella and Catherine search for the meaning of the necklace. What will they uncover about its importance?

NANCY LOOKS INTO A SEEMINGLY HARMLESS PRANK AND FINDS EVIDENCE OF AN ARTFUL CRIMINAL COVER-UP! The River Heights High Wildcats are facing their bitter rivals, Red Rocks High, in a girls' softball play-off game. But before the first pitch is thrown, the spirit of foul play intrudes. Someone breaks into River Heights High and steals the school's prized trophies -- a treasured portrait of a pioneering woman coach and the team mascot's cougar costume! Nancy, however, is convinced that the theft is not a simple case of bad sportsmanship. For the closer she comes to the truth, the more dangerous the game becomes. The burglar has already demonstrated a talent for disguise and deception. . . and has now decided to play true hardball, taking aim at Nancy Drew!

A long-lost map holds the key and Kate is determined to find it!Kate, Anders and Eric have traveled to Michigan's Upper Peninsula, where Kate's Irish relatives live as caretakers of an enormous mansion. Kate is excited to meet her cousin Megan for the first time, and it turns out the two girls could be twins except something about Megan is very different. Will it keep Kate and Megan from being best friends?Soon after their arrival, Kate, Anders and Eric learn about a treasure map hidden somewhere on the grounds of the estate but when two shady-looking men are seen lurking around the mansion, Kate is worried they will steal the missing treasure. Danger trails the foursome as they race to find the missing map and the treasure it promises before the thieves catch up.What secrets lurk in the shadows of the mansion?