Located high up on the east wall of the garden was an arched niche. It sat 2.05m above the ground with a masonry square altar standing below it. The niche was recorded as being undecorated however the altar was coated in red stucco and the wall behind the altar possessing a panel of white stucco which served as the background for a cult painting. On the wall behind the altar was the Genius sacrificing at a circular altar, towards which two crested serpents were moving within bushes. Behind the Genius were two trimmed trees. Only the niche is preserved today.