The east wall of the antechamber is interrupted by a large opening flanked by the representation of Osiris to the left and Anubis on the right; this, in turn, leads to the side chamber, decorated with offering-scenes, preceded by a vestibule in which paintings portray Nefertari presented to the deities, who welcome her. On the north wall of the antechamber is the stairway down to the burial-chamber, a vast quadrangular room covering a surface area of about 90 square metres (970 sq ft), its astronomical ceiling supported by four pillars, entirely decorated.[18][19]