That sounds incredibly ominous. As if she's talking about an afterlife of sorts. It sends a chill running down Daniil's spine.

"... Then there is some sort of end to all of this." He says, "Very well. I have not forgotten your indiscretions and I shall speak with you again if I need something."

More like, if he gets mad enough, he'll come bitch at them. He's actually kind of surprised at what a good sounding board the ferryman truly is though he's not going to admit to that out loud.