Deni is a childhood friend of Scarlet. He and his family are all Hilurin. His sister is Zsu, who is fifteen when she first appears in the novels. Deni is seventeen and described as having a sense of humor.

His family (his father is never named in the novels) was one of the few who decided to remain in Lysia after it was burned. They plan to buy Skeld's Ferry and continue operating Tradepoint and the water traffic.