In this third book, we encounter an old friend, Martin Silenus. He is the only survivor (at least in this timeline) of the Shrike Pilgrimage and is now almost 1000 years old, thanks to anti-aging treatments. We also come across the Shrike again. However, ***********SPOILER ALERT***********, this time it is on "our" side.
We are also introduced to some wonderful new characters. Raul Endymion, a young man native to Hyperion and a former soldier, gets into trouble with the powers-that-be but is saved by Martin Silenus for a specific mission: to rescue Aenea, the young daughter of Brawne Lamia and the Keats cybrid, and protect her from being captured by the Pax and the Church, which have taken control of many of the former Web worlds. The entire storyline of the Pax and the new iteration, or perhaps I should say the new corruption, of the Catholic Church is truly fascinating, although it isn't fully explored in this book. I have a hunch that we'll learn more about it in book 4.
An android named A. Bettik also joins Raul and Aenea on their interstellar journey while they are being chased by Pax officer and priest, Father Captain Federico de Soya, and his special 3-man squad of Swiss Guards. A. Bettik is a rather elusive character; we never get to see from his point of view, and he doesn't disclose much about his background. However, we do get to see some of Father de Soya's point of view. He has been assigned by the Pope to capture Aenea, who allegedly poses a threat to the Church. Father de Soya is a wonderful and complex character, and it is hinted that we will learn a great deal more about him in book 4.
I loved this book just as much as the first two, and I'm starting immediately (well, as soon as I finish a bit of housework) on book 4, The Rise of Endymion. I'm certain it's going to be another thrilling adventure!