[quote=@Threads of Fate]
*A hologram appears in front of each participant of Dark's game that only they can see, and text on it reads as:*
"Day five, I'm getting giddy. I wonder if you've killed them off yet? Here's hoping, and today's riddle. If it seems easier, it is. Only the best should be left now, so we can get to the easy ones.
If it's information you seek, come and see me.
If it's pairs of letters you need, I have consecutively three.

Who am I?" 

[/quote]

Phhhh, too easy.
*Types "Bookkeeper"*