It's for the best Geralt plows ahead instead of waiting for the peanut gallery to prompt him for actually useful information. It's the only way to really accomplish a debriefing around these parts. Exposition dumps.

The Darkness puts a furrow in his brow. Set the entity loose deepens it.

What the hell does that even mean? What the hell is the darkness? Jack didn't mention any of that in their admittedly brief, shell-shocked chat in the wagon, or in passing since then.

But it does seem like something worth mentioning.

"That kid that's been hanging around. Jack. We, um-" A pause. He chews his cheek. "Apparently we're raising him, a couple years down the road from the last thing I remember, I don't know, but he uh. He says by the time we pick him up, this thing's gone."

A flex of his forearm, an absent glance at the mark.

"I'm still alive and kicking, and he doesn't remember ever seeing me with the mark. How that stacks up against Singularity magic, or- timelines, or whatever, I don't know, but... Between him and whatever crap Lucifer's spewing, I think that means it's possible, right? That we figure something out, somehow. This thing comes off, and we deal with whatever the darkness is by then, so how bad could it be?"