You mean the whole "She of the Red" thing? The Orlesian game? I have theories...

And yes, it begins with Aveline finding a prison record in which there is a reference to someone with a tattoo of her family's crest. The cryptic stuff at the end may be any number of things...
I'll be lazy and cut and paste from a blog that I wrote:
'The missive and the prison record seem to originate long after her family went to Ferelden and she comments that her father didn’t want to play the game – that pesky Orlesian “game” of subterfuge, duplicity and scandal. Should we believe that Benoit Du Lac did indeed desire to be free – to cash in his chips and leave the table, as it were? Or is this another situation where, despite one’s wishes, you can never be free from the circumstances that surround you? The game may be too deeply ingrained in all aspects of Orlesian society, so even with miles of distance, and an ocean to separate him from Orlais, Du Lac was still an active player, albeit reluctantly. Another instance of being able to run, but not hide. And after all, who in the DA-verse can truly escape the issues clinging to their family lineage?
Alright, so the text. The first three lines are fairly self-explanatory in that they deal with the cat and mouse. The last line however hints at something of a conundrum. “Beneath Du Lac, She of the Red.” Does the first bit refer to the family – that somewhere in the line, we are to find our answers? Or is it more literal, and refers to a lake? (Though there would be dueling prepositions, since “du” would mean “of” in French, and “beneath of the lake” just doesn’t make sense. Unless this is an intentional faux pas of grammar!) Orlais has Lake Celestine – is something beneath its waters? (It does bear a slight resemblance to the misshapen wizard hat that is Lake Calanhad.) Now, one other theory is that this is a nod to the amusement park town of Dulac in
Shrek, and maybe someone is walking around in a large-headed (but samite-gauntleted) nug costume somewhere underground. I hesitate to truly go down that road of conjecture however.
“She of the Red” - We’ve already seen some notable redheads and gingers in the DA-verse: Aveline, Leliana, Tallis, Andraste, etc. Is
She one of them? Or is it a reference to the mysterious Red Jenny and her friends? (Who may or may not be part of the grand group of the flaming-haired.) In DA2, we know of a cult that calls itself the Followers of She, whose members have sworn allegiance to the Desire Demon Hanker. Is this
the She? Had she first made her name in Orlais and then traveled off to the streets of Lowtown for the ambiance?'
Basically, we don't have clear answers right now. This is either a red herring of sorts, or a little morsel that Bioware is giving us, with the promise of a meal later on down the line.