Re-reading this book after 30 years didn't improve it much. I could only remember one thing from my first reading: a detailed description of how the characters melted into glup to withstand 10G acceleration in a space vehicle, and the reconstitution process beginning with a tadpole like creature swimming around in the glup and swallowing it until the person was restored. But the rest remains forgettable. Even for science fiction, this was simply beyond belief.