Aglaya Lilich

Aglaya Lilich is an Inquisitor, sent from the capital to address the epidemic.

She is the sister of Nina Kain (Lilich) and, consequently, the aunt of Maria Kain. However, according to Victor Kain, the sisters, despite the difference in their ages, hated each other, and this hatred is not lessened, even after the death of her elder sister. Therefore, Victor suggests that one reason Aglaya coming to town is for revenge.

The Arrival Of The Inquisitor
Initially, all assumed that the authorities will send Kroy, Orff or Karminskiy, so the arrival of Lilich proved to be very unexpected. Partly this is due to the fact that the Inquisitors Board sentenced Aglaya Lilich to death.

Victor Cain makes three suggestions why Aglaya was given the mission to save the city:

1) Their information about the sentence is incorrect.

2) She was performing the role of Inquisitor illegally, having usurped the powers of others.

3) The authorities provided her one last chance to rehabilitate, through a nearly hopeless task.

The last assumption is confirmed in a conversation with Burakh by Aglaya herself.

Objective
Aglaia Lilić calls himself a servant of the law and considers the main purpose of her activities saving the city and the rule of law. According to Aglaya, a major reason that the law has been violated were miracles.

In her view, creative wonders break the thin fabric of the universe. Proceeding from this, the logical outcome is seen as her research: to save the city it is necessary to demolish the Polyhedron.

Partly this conclusion really follows from the information obtained in the process of searching for the Udurg. However, if you recall that Polyhedron-brainchild Kains is currently concentrated in the spirit of Scarlet Nina, Viktor's assumption of revenge may not seem so wrong.

But there is another nuance of conversations--that Aglaia knows who the Powers that Be are and leads the fight directly against them, and thus appears another reason for demolition of the Polyhedron.