User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-9703010-20130605181745/@comment-3146930-20130605224147

The Arrow of Artemis has been floating around as a title ever since The Son of Neptune. If it isn't a title yet, it isn't going to be. The Dawn/Rise/Fall/Winter/Return/Full Throttle/Last Stand/Legend of Curly's Gold/Might of Gaea all seem like plausible titles, but I don't think any of them are true. I won't believe what the title of Book 5 is until I see it in the back of my copy of The House of Hades.