I have been a huge fan of this series ever since I read Children of Time. This one is on a par with it. The premise is the same: an Earth Ark ship on its way to a new planet, supposed to have been terraformed in anticipation of human colonists, escaping a dying Earth. In line with the Gilgamesh of Children of Time, this one is called the Enkidu, on its way to a planet called Imir. but they are not the only one. There is also an expedition from the Humans and their non-human allies (portiids, octopi, and the new addition: corvids). There is, I think, a greater sense of tragedy to this one, with a mystery at its center. The ending is ambiguous so I'm not sure whether there will be another "Children of..." entry or not. Either way, this one was a page-turner.