Board Thread:General Discussion/@comment-176.92.176.178-20140225162814/@comment-85.57.140.131-20140501194856

Furthermore, it is said Gustang knows the way out, so may be Zahard just asked him to get Baam out of the Tower, and that's how Gustang knows about Baam. There are many other posibilities, but Baam being the son of Zahard is one of them. I think he is something way more special, though.