Challenger Immortal — Michael Mounts

In this second exciting misadventure of Georgia Challenger, our mad, yet noble scientist, the intrepid Professor finds if she doesn't take action she may find the devil at her door. She sets out upon the only course possible: a road trip into section of the Plateau she has left entirely unexplored and thus completely unknown to her. Because of this she knows the entire family must come along, not together of course, rather divided quite unevenly into three parties without the benefit of really knowing what they may find, or what may find them.