User blog comment:SayuriDarling/The Mark of Athena Official Discussion/@comment-5648117-20121003002036

The next book is The House of Hades! More Nico hopeful!

Proof: http://1.bp.blogspot.com/-GSUhnhg5How/UGqV8GcvaCI/AAAAAAAAEBU/BdIry9CKYDg/s1600/Treasure.jpg