Josh is attending medical school in Florida and engaged to a beautiful girl when the Adventure Box arrives, and his well-planned life takes a major detour. Josh and his brother Erik have received adventure boxes from their grandfather in Michigan for years. The boxes helped bridge the distance between Michigan and Florida, and kept their grandfather a part of their lives. Each box was lovingly filled with treats and gifts, and arrived regularly until a year ago when his grandfather died. With his grandfather gone, how can this Adventure Box be explained and what does it mean? who sent the box, and why? The return address says Heaven! Equally puzzling are the contents. The box contains three clues: a feather, a watch and a map. Seeking answers, Josh travels to Michigan and enters a world of buried treasure, African swords and an ancient curse. Along the way he finds true love and something important that he almost lost: himself. His grandfather had been correct The Last Adventure Box was the most important one of all.