Board Thread:General Discussion/@comment-4023096-20131110013208/@comment-4521561-20131110022407

It's not confirmed but it is possible. If you want check out http://percyjacksonfanfiction.wikia.com/wiki/Category:Children_of_Thanatos and http://camphalfbloodroleplay.wikia.com/wiki/Thanatos%27_Cabin.