If Evan was entirely honest with himself, he truly hadn't the foggiest as to why, exactly, Cassius Warrington was approaching him for anything private at all-- and let alone quite so formally-- but the prospect was nevertheless one that promised to be positively brimming with untapped potential. A joint venture between the two of them? Perhaps Warrington had an idea on how to elevate their current assault on the wizarding world further still. If it was possible to elongate the effects...
But he was getting ahead of himself.
Letting him into his house-- and taking the time to shake his hand, of all things-- Evan promptly guided him into the sitting room, gesturing for him to go ahead and sit as Evan approached his alcohol cabinet.
"It's the perfect time to strike, really. I could do with a few more bodies to work on... can I interest you in some whiskey, Warrington? Cognac? Something else, perhaps?"