I'll get the pinto beans and muffins.

And so, Jack's plan is revealed...sort of.  It turns out that this whole thing was but one long story of a brother's quest to get revenge for his fallen sister.  Now, I will admit that this intrigued me, so I went looking around, and apparently, our heroic gumshoe did in fact do battle with the Queen of Diamonds, and was in fact responsible for her demise since according to my sources, she was holding him at gunpoint on a roof, and things were looking quite grim until Tracy threw some fake diamonds over the side, towards a nearby river.  Being the clever crook that she was, Queen went after them and fell down the smokestack of a conveniently passing tugboat (and now you know the rest of the story).  All I'll say is that this whole scam has certainly been a lot of work just to get revenge, so I'm thinking that revenge was only one part of the plan, and that Jack may not have even mentioned to Ace that he was going after Tracy.  Oh Jack, I know that your days are numbered.  I know that even though there is no river or passing tugboat nearby that you will meet some grisly end.  I also know that someday this storyline will come to an end and we can move on to bigger and better things.