While I've had little success with the peerless themselves, I do like to hunt in areas where the peerless keys are found. Specifically, I like to collect the dreadhorn keys and Travesty's keys. This usually makes people I run into very happy, as I offer them my collected keys the second they show up (and every once in a while, they offer to let me help with the peerless in question). However... Every once in a while, like tonight, I slay many of the creatures that usually bear the keys and find nothing. I just killed 10 high executioners in the Citadel, who sometimes drop a key with every death, and have found nothing but a boat load of gold. Granted, I'm not complaining at my new found wealth, but I do wonder why the high executioner, master thief, Silk and that other spider aren't dropping the keys they're supposed to be dropping.