Goddess discussion

Im still reading Goddess but this has been bugging the life out of me since the end of the first book. I love these characters dearly but they are so slow sometimes. Who is Helen's father? I don't know how no one put together that Helen's too young to be Ajax's daughter but I can't keep going on like this. Its gonna drive me insane. Please help.

The man she's always known to be her dad IS her real father. Sorry, can't remember his name, haven't read this series in a while. ;-)

Jerry