The general scenario for this had me from the offset - A small group of men, engineers, scientists, military, stranded on the moon as the Earth dies in a nuclear holocaust. The once 'Big Blue Marble' is just a dead grey orb. The only hope of salvation lies with a 'gadget' that may help them find an alternative/parallel Earth. If they succeed, though, will they be able to reach it with their limited resources and what kind of Earth will they find?
This is a tightly written and tense, atmospheric book. I don't tend to use phrases like "not a word wasted" but in this case I will. There is a sense of loss and desperation amongst the men that is palpable.You also get a backstory of the lead character that fills in the details of what leads. up to the final days of life on Earth
I will say there are a lot of abbreviations both scientific and military but worry not, there's a glossary at the back. And, to be fair, you do get a good idea of what the abbreviated things are so you probably won't find yourself looking everything up.
Not a long book but a lot of story all the same, and just the right length. As the first in a quartet it does the job by making me want to read the rest.
A job well done