Anticlea’s ghost came to the trench and was kept from its blood.
See evidence text
“‘Thus, then, did we sit and hold sad talk with one another, I on the one side of the trench with my sword held over the blood, and the ghost of my comrade saying all this to me from the other side. Then came the ghost of my dead mother Anticlea, daughter to Autolycus. I had left her alive when I set out for Troy and was moved to tears when I saw her, but even so, for all my sorrow I would not let her come near the blood till I had asked my questions of Teiresias. ”