Tunnels - The Complete Saga

Who knows just what things, once believed to be science fiction, are now science fact. When Nikki learns her dad is dying, she heads home. Once there, she finds science fiction has become science fact. Her father has invented a way to travel to parallel worlds. The sad thing is, that is also where he got sick. It is in one of those parallel worlds where Nikki can find the cure. Time is running out and Nikki is heading in.