The last piece of the puzzle

RACHEL'S POV 

 "Devon! Are you here?" I yell as I push open the door to his study and step in, darting my heads left and right slowly, scanning my eyes through the environment searching for Devon, but he was nowhere to be found. Which was rather strange; Devon never left his study door unlocked when he wasn't around. 

There was only one way in and out of this room, and just one key to the door. He kept a key with him at all times; he never even let the maids into the study room to clean up. He always insisted that they were not to be trusted, as they could easily be bribed to betray him. As a result, he always cleaned up himself.