Books with author Bob Schaller

Ashley and Adam Arlington reveal pieces of their puzzle as they follow a scavenger hunt along the Freedom Trail through Boston to Bunker Hill.

When a family friend disappears after the plane he was piloting crashes, the Arlingtons interrupt their Wyoming vacation to help the authorities look for him.

Following clues in a mysterious riddle game, the Arlingtons are led through Montana on a trail that parallels the journey of the Lewis and Clark Expedition.

While on vacation in California, Adam and Ashley and their parents learn about the time of the gold rush in that state and help try to recover a stolen antique saw blade that came from John Sutter's mill.

During a Colorado vacation, teenagers Ashley and Adam Arlington help the police try to recover two large pieces of valuable gold crystals stolen from the Cave of the Winds.

Ashley and Adam Arlington team up with members of the Sioux nation as they explore the Black Hills in search of a missing government treaty.

While Ashley and Adam Arlington are on vacation with their parents in Florida, they help solve an old mystery that involves the Seminole chief Osceola, the Spanish explorer Ponce de Leâon, and the Castillo de San Marcos, a fort in Saint Augustine.

During a family vacation in Texas, Adam and Ashley Arlington follow the trail of a torn piece of paper and are led to surprising discoveries concerning the 1836 siege of the Alamo.

Jack and Diane are two friends who enjoy playing sports. Through lessons on and off the playing field and court, they learn how Christianity can be applied to sports, and all relationships formed through athletics.

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