When asked about an old shipmate by the newest crewmember, Santiago agreed to share the story of the dark place. He had no other name for the place, for nothing else had been given to him. He knew little of the other man before the journey, but they were to retrieve items for the Captain. Santiago went to ensure they got back out.
When that companion told him to take one of the items and tell no one, he'd agreed. He'd kept that secret for a long time now. The young man who asked deserved some of the tale, but how much? The nature of the spirits within? That he didn't quite know himself. What that companion had told him on the journey? Some might be relevant, but certainly not all. How did he get them out? Well, to explain that, he might have to uncover something he'd kept hidden for a long time.