|Summary:||Triangular wall; in the Sanctuary of Demeter and Kore, next to the Lesser Propylon, on its western side.|
|Date:||ca. 400 BC - 300 BC|
Peribolos wall and small temple with cella and pronaos opening east.
Sanctuary to Pluto-Hades, the wall encloses a cave through which Pluto brought Kore back from the underworld. The small temple is ca. 328 B.C., displacing an earlier one on the same location.