Jake Ransom and the Howling Sphinx - James Rollins

In a new pulse-pounding adventure, Jake races against time to outfight and outwit Kalverum Rex, knowing that if the skull king wins, he'll be unstoppable. Filled with unexpected danger, challenging puzzles, and dazzling action. \n \nSurrounded on all sides by sand and dunes and hunted by prehistoric beasts, Jake must decide what he and his friends Marika, Pindor, and Bach'uuk, and his sister, Kady, should do next. Then the young Princess Nefertiti launches an attack!\n \nAfter a bloody skirmish, Jake convinces Nefertiti to join their fight against the evil Skull King, Kalverum Rex. For Jake has something the Skull King wants, a prize that will give its owner awesome power--including control of the fearsome Howling Sphinx. And if the Skull King takes over the Howling Sphinx, then all is lost.\n \nFilled with unexpected danger, challenging puzzles, and nonstop action, this sequel to Jake Ransom and the Skull King's Shadow is a first-rate, fast-paced thrill ride!\n