Books with title The Hidden Window Mystery

Reader's Favorite International Book Award Finalist When her teacher informs the class that Duchess, the school cat, is missing, Gracie jumps right in on the case. She is used to snooping around, but when she finds a message in the window of an old, abandoned house, she thinks it's a little too freaky. BUT ... they don't call her 'Super Spy' for nothing she decides she is not going to be scared away. When she finds more mysterious things going on in the old house, can she get anyone to investigate with her?

From the front flap of this 154-page book: "When Jeremy and Jennifer Lane discovered the portrait of their ancestor in the attic, they could not foresee how this steely-eyed many-times great-grandmother would effect their future. The wild disorder in their kitchen caused by an intruder, the chance discovery of a family name in an old newspaper, and their encounter with a refugee artist who rescues them in a moment of danger are seemingly unrelated elements in an engrossing mystery. All of these incidents raise the questions of: how can the Lanes prove their claim to a lost fortune; what secret does the family portrait conceal; and who were the refugee artist's threatening callers. Finding the answers to these questions leads Jeremy and Jennifer down paths of intrigue and peril. Readers will enjoy the lively Lane family and their adventures in this exciting book by a favorite writer of mysteries for young people."

Right now Gale Tyler is twelve, but if she lives to a hundred, she surely won't forget this amazing summer on the island of Rhodes. She's here with her mother and her brother, Warren, who is as thrilled as a future archaeologist can be on his first visit to Greece. Thrills not exactly archaeological greet the young people the very first morning of their stay at the hotel operated by their aunt and her Greek husband. Up on the fourth floor, where Gale and Warren are the only guests, a whirling, leaping, black-shrouded figure streaks by and disappears into a room farther down the hall. Thuds and a jumping sound soon come from behind the door. But when it is opened by an angry little woman who rushes up from the third floor, the room is empty. Presumably empty, that is. Someone at an upper window of a big white house surrounded by trees is definitely sending mirror signals to the room. Also, in a closet, Gale discovers a strange packet folded in a leotard, obviously hidden there. Like a Pandora's box, the packet when opened releases a whole complex of events involving the American visitors deeper and deeper in mystery. Their cousins, Nicos and Tassoula, and dignified old Thanos Castelis, proprietor of the famous Pegasus pottery works, are all caught in the tangles of a dark family secret. Unraveling begins at the white house, leads to the ruins of Camiros, and reaches an exciting end on the rock of Lindos, high above the Aegean.