By Session 64, Silk revealed that word spreads quickly in Drar: Lesha already knew Dristuul was in the city.
The disappearance of Robin has made Lesha even more wary and uncertain about Dristuul — though she does not know that Dristuul himself killed Robin.
According to Silk in Session 67, Lesha cannot go against the code — a Black Senate code older than any of them. With no one to vouch for Dristuul and years of trust in Robin, she sided against him. This appears to be the root of Dristuul’s falling-out and exile from the Senate.
Relationships
Dristuul — A former Black Senate member whose return to Drar has drawn her attention. She is wary of him, especially in light of Robin’s disappearance.
Silk — A fellow Black Senate member who relayed Lesha’s awareness of Dristuul to him.
Robin — His disappearance has heightened her suspicion.