Ilium/Olympus
 The series centers on three main character groups: that of the scholic Hockenberry, Helen and Greek and Trojan warriors from the Iliad; Daeman, Harman, Ada and the other humans of Earth; and the moravecs, specifically Mahnmut the Europan and Orphu of Io. The novels are written in first-person, present-tense when centered on Hockenberry's character, but features third-person, past-tense narrative in all other instances. Much like Simmons' Hyperion where the characters' stories are told over the course of the novels and the actual events serve as a frame, the three groups of characters' stories are told over the course of the novels and their stories do not begin to converge until the end.