A Doomed Pilgrim in the Ruins of the Future

It thirsts for your blood but there is no escape. You must aggress it.

I recall a battlefield, a dying soldier, a secret name whispered with a final breath.
Seeing no other alternative, I call upon a debt from beyond the grave and summon an old ghost. As I run, I beg for it to stop the creature that pursues me.
Does it obey? How does the golem react to its presence?
Anyone should answer one question, and a different person should answer the other, in any order.