I am looking for the Title, Author, and Publisher of an old scifi book I read back in the late 60's, earily 70's. Premise was an war injured space pilot, only had his brain and nervous system survive. Given a new body by scientist made of substance other than carbon. Scientist was murdered and polit was imprisoned from crime on desert planet. Escaped and use some type of device to go to alternate world reality discovered by scientist. There he discovers that his body was made for this world and provides powers to defeat some type of creature threatening that world. Returns to real world with new powers and finds killer of scientist.

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