Lord Cassius Sencen

Lord Cassius is Keefe's father, and part of the Sencen family. In Keeper of the Lost Cities, he is met briefly on the staircase leading down from the Level Four wing, on the end of Midterms celebration. He took quite an interest in Sophie Foster, hinting that he knew she was the mystery prodigy that Sir Tiergan was Mentoring.

Appearance
He is described as taller man with much of Keefe's characteristics, but with blonde, slicked back hair and neater attire.