Amy y Dan ya no pueden más: además de ser los primeros en encontrar las 39 pistas, deben intentar reconciliar a toda la familia Cahill. Pero hay un secreto que los Madrigal no les han contado y que podría costarles todo lo que han conseguido... Los Cahill son la familia más poderosa del mundo. El secreto de su poder se encuentra escondido por el mundo bajo la forma de 39 Pistas. After crossing five continents and solving some of history's most...

It was the most renowned and respected shrine in the Roman Empire, the object of veneration by Julius Caesar, Cleopatra, Octavian, and a host of other luminaries. It stood for centuries within a sacred precinct the size of a large town at the heart of the greatest Greek city in the world. Yet it disappeared without a trace, creating the greatest archaeological enigma of the ancient world. What became of the tomb of Alexander the Great? Does any part...

Discovering hidden writings by Queen Elizabeth I's astrologer that made shocking predictions for the modern world, documentary producer Lucy King races throughout England, France, and New York to decipher clues leading to a fated lost treasure.

"Based on the most advanced findings in physics, cosmology and mathematics, this latest novel from José Rodrigues dos Santos, author of CODEX 632 ("a fresh-thinking historical thriller" -- KIRKUS REVIEWS), brings together cryptology, international espionage, and a secret formula created by the most famous scientist of all time -- Albert Einstein"--Provided by publisher.

Somewhere in Saint Erasmus's Catholic church, there's a parish register containing a firsthand account of the sinking of the "San Telmo." To find that ship in honor of their murdered aunt, Chris and Carrie first have to find the register. And it turns out that the church is supposed to be very haunted.

When the three cousins find some strange symbols carved in an old tree, they start learning about hobo code and in the process learn about the importance of kindness as well.

"Set in the present day Middle East, two American graduate students are completing their archeology studies. While on a desert excursion, they come across an artifact that leads them on a frantic search for one of mankind's great mysteries. As one man grows, the other suffers through a series of self-destructive choices and decisions as their adventures take them across the ancient holy land. A series of unexpected twists and turns adds to the challenge,...

On the trail of a document that could lead them to a lost treasure ship, Chris, his cousin Carrie, and their friend Maddison head into the woods in search of and old Spanish Mission church. It should be simple--except for that little stalker problem the kids still haven't been able to shake, plus the film crew that doesn't take kindly to unexpected hikers. And then there's the vengeful ghost said to haunt the woods ...