A great follow on. The author really brings his aliens to life and he introduces the Rakan in this book. Like the Joon, they're close enough to us to be understandable, but weird enough to be interesting and the Rakan just keep getting weirder. The story follows a similar plot to the last one but painted on a bigger canvas. Most of the questions raised in the last book are answered but, as you would expect, they just raise more question. The scope of this book is amazing and the technology brilliant and, as in the last book, the author explains his technology. I'm not a physicist but his explanations actually sound reasonable. The old gang are back from book one and even more entertaining and the ending is just as stunning but I'm not sure what's left to blow up in book three. Another great book and well worth five stars.