It will be what Lucifer remembers most after they return to Thorne and attempt to make something "normal" fall back into order. The amount of how much the Summoned simply weren't deterred by Lucifer. It makes a strange difference that he wasn't prepared for.

Chop, mix, cook down, combine, bottle.

He's not one for potion making, not like Yennefer, but the set, fixed instructions make the time go by in a focused blur. He's taken up more work for them himself than was necessary, but he has over the course pawned over the more simple tasks like chopping off to others that needed an equal level of distraction.

Or, you know, genuinely just looking for a way to help.

That should likely be first on anyone's mind. Any sane person.

"Gotta do something," he says in response, "it's not like any of us know how to sleep."