"Jack Grady, a field anthropologist and 21st century Indiana Jones, lives for the thrill of adventure and the joy of discovery. When his estranged brother, the introverted mathematician Jeremy Grady, is murdered, Jack is determined to find out what happened. His first clue: his brother was stabbed in the chest with an ancient ivory spear. It reminds him of the weapons of the Amazons, a fierce tribe of female warriors dating all the way back to the...