The mysterious person entered Damian's room, placed a flask with a green liquid on his bedside table, and left. All done without making much noise or leaving any tracks. Damian could tell the person knew what they were doing.
'But why are they trying to frame me? What did I do?' Damian wondered.
He had recently arrived in the castle, and had barely done anything other than walk around, eat, and sleep. Of course, he had explored the locked doors which he shouldn't have, but no one knew about that.
Damian was not fond of the idea of having a flask with poison inside his room, so he put it inside his Spatial Ring, and would discard it later before it brought him trouble.
After that, Damian returned to doing the thing he was doing before someone invaded his room: sleeping. He needed to get well-rested for the guard test the next day, which would surely be somewhat difficult, but nothing Damian was worried about.