Robotech II: The Sentinels - Book I #9 was published by Eternity on September 1, 1989, as part of a series that began in 1988. Carl Macek and Chris Ulm write, and art comes from Jason Waltrip and Jim Rohn. It features Rick Hunter, Lisa Hayes, Lyn Minmei, Max Sterling and Breetai, among 17 characters cataloged on VerseDB.