On the east wall of the subterranean kitchen was a cult painting. The painting consisted of two registers. In the upper was a sacrificial scene depicting the Genius by an altar with a camillus. On either side of these figures were the Lares carrying rhyta and situlae. Across the top of the upper zone was a garland with plants decorating the background. In the lower zone was an altar with an offering of an egg with a serpent beside it. Behind the serpent was a vase. It is unknown if this cult space survives today.