A GREATER INFINITY

Rating:
Summary: An excellent merger of alternate histories & space travel.
Review: A young engineer is embroiled in the machinations of two competing probability traversing cultures- one human , one neanderthal. Utilising his knowledge of our space program he seeks a resolution of the conflict. A fast paced story which competently merges two of the major themes of SF. Much the best of M. McCollum's work. A sequel would be most appreciated, expanding on the linear time travel & truly alien civilisations hinted at towards the end of the story.

Rating:
Summary: One of my all-time favorites
Review: I bought this book used at a public library book sale. Since then it has been one of my all-time favorite books. Time travel, "sliding", warring races - it had elements which I thoroughly enjoyed and shared with my brother who also loves the book. My copy is worn from being read several times over.

Rating:
Summary: If you like the TV show "Sliders" this book is up your alley
Review: The similarities between this book and "Sliders" are amazing. Even has an advanced neanderthal race bent on multi-dimensional conquest like the Cromags in "Sliders". I wonder if the people who thought up "Sliders" have read this book?