After surviving a hurricane in the Caribbean, ivory poachers in East Africa, and a Cairo crime syndicate racing up the Nile, zoologist Jack MacGregor, his paleontologist wife, Mavis, and children, Chris, Ryan, and Heather, head to the wilderness of Alaska and encounter an unusual new threat from ecoterrorists. As in all MacGregor Family Adventure Series novels, the MacGregors are once again caught in a web of intriguing characters full of danger,...