Is there a parallel between Quentyn’s deal with the Tattered Prince and Tyrion’s deal with Brown Ben Plumm? @poorquentyn has made the point that Tatters is basically as close as you can get to the Devil in this setting and Tyrion’s deal with the Second Sons seems rather Faustian.

Signing contracts in blood is pretty Mephistophelian, and certainly Tyrion is going to a dark place when he’s signing away his birthright with the substance that gives him this right in order to get revenge on his family who denied him this right. 

But it’s also rather piratical by way of Robert Louis Stephenson, and I think it’s pretty clear that Tyrion will be working to ensure that the Second Sons aren’t going to live long to enjoy the gold he’s promised them, in the same way that Captain Flint ensured that the assistants who helped him bury his treasure didn’t tell any tales…