The MacGregor family outwits archaeological thieves and battles ecoterroris...More

This fifth novel in the series finds the MacGregor clan stumbling into yet ...More

Teenage scuba divers clash with modern-day pirates in search of lost Spanis...More

Serengeti, Ambroseli, Masai Mara, and Mt. Kilimanjaro are just a few of the...More

The MacGregor family heads to the warm waters of Mexico and Central America...More

The shifting sands of the Sahara reveal a secret that could forever change ...More