After escaping the Black Hook Gang in 1860 New York City, twelve-year-old twins Alexander and Cleopatra flee to New Orleans, become separated, and try to find each other in San Francisco, while being followed by pirates who think they hold the key to treasure.

"For as long as Ryanna Stuart can remember, her summers have been spent with her father and his new wife. Just the three of them, structured, planned, quiet. But this summer is different. This summer, she's received a letter from her grandparents-grandparents neither she nor her dad have spoken to since her mom's death-inviting her to stay with them at an old summer camp in the Poconos. Ryanna accepts. She wants to learn about her mom. She wants to...

When best friends Bird and Squirrel find a treasure map, adventure calls once again. Squirrel is worried about the dangers ahead, but this time, Red and Birdie aren't going to miss out on the fun.