Brush of True Paint

 is an Aedric artifact, crafted from the hair of Dibella. In the Third Era, a painter named Rythe Lythandas acquired the brush, using it to paint a picture. Before he could finish, a thief stole the brush, and used it to enter the painting, dragging Rythe into it with him. Once inside, the painting's subjects sprang to life and began hostile.

The Hero of Kvatch may have entered the painting to retrieve the brush and Rythe, using a special poison made from turpentine to slay the Painted Trolls within.