|The information in this article comes from Dynamites, warlord of mars and is not written by Edgar Rice Burroughs.|
Image by Lui Antonio & Alexandre Starling .
Rek was a royal advisor in helium, and an old friend of Dejah Thoris
Rek apparently has a complex history with Dejah Thoris, apparently they had a relationship once that Dejah describes as "almost as ancient as the battle at the face of mars".
When Dejah went on an expedition Rek got in a heated argument with her over the situation and insisted that she bring more soldiers in case something happened.