When a Connecticut teenager inherits vast wealth and an eccentric estate from the richest man in Texas, she must also live with his surviving family and solve a series of puzzles to discover how she earned her inheritance.

After years in foster care, April gets to live in a mansion where she and four other children are caught up in a mystery related to a missing heir, a lost legacy, and the Phantom.

Thirteen-year-old Sammy meets a mysterious man who dies of a heart attack after telling her to get rid of the large amount of money he is carrying, leading her to investigate who the man was and how he came to be carrying so much cash.

"April thought she had her happy ending. After all, she has her new house and new friends and new guardian. But she also has a very big new secret. The kids of Winterborne House are the only ones who know that Gabriel Winterborne--famous billionaire and terrible cook--is really a sword-wielding vigilante. What they don't know is that he's not the only one. When a masked figure breaks in, looking for something--or someone--it's clear that Gabriel has...