Just back from the Amazon, the boys head out on a school bus trip to California. When the bus stops in the middle of the night at a deserted cafe, the boys become tangled up in a host of untold secrets buried beneath the sand-swept terrain. Is the reclusive old man, Mr. Natonto, at the center of it all? And what s he up to in Lizard Flats? Or is it the legend of the Negro Arena Diablo come back to haunt the inhabitants of Gila Bend? A harrowing escape from the sun-baked desert leaves the boys thinking they can put the whole bizarre tale behinduntil the local highway patrolman, Officer...

Archibald, Jockabeb, and their little sister, Tess, head off for a long weekend with their Aunt Claire in New York City, where they set about visiting the local tourist sites. Things take a disastrous turn after the boys become separated from Aunt Claire and Tess and cross paths again with the evil Tommy Nat, who almost succeeded in taking their lives in Haiti several months before. The boys frantic attempt to evade capture takes them to parts of Manhattan never listed on any tourist map, and leads them to a mysterious young girl named Willow, who knows the secrets of the city, both above and...

In the first book, the two brothers meet Haktu, the young Indian brave who was trapped inside the body of an underwater dragon, and then find his lost pony, Uno, deep within a mysterious forest. After the boys narrowly escape several vicious attacks from evil wolf-crows, they receive a magic blue feather from Haktu as he bids them his final farewell. Book Two begins with Archibald and Jockabeb flying to a secluded summer camp perched high in a rugged mountain range far from home. The fact that they are the only two campers to show up at Camp Bear Claw that summer is just the first of many...