* MoralEventHorizon: Johnson feels that he's crossed it during the years fighting the Insurrection. Maccabeus feels that he would cross it by destroying Harvest and all its relics. [[spoiler: Loki, however, crosses it when he deletes Sif to prevent her from falling into Covenant hands, after promising Mack he'd protect her.]]
* TheWoobie: By the end of this book, you ''will'' want to hug Mack. And Sif. And Dadab. And Lighter than Some. And [[IronWoobie Johnson]]. And maybe [[http://www.halopedia.org/Wallace_A._Jenkins Jenkins]].