The Jade Foxes, following the leads from the Silent Stream Mine (JF10. Mystery Of The Mine), sought out The Burning Tree in an attempt to track down Masque. They had one clue; the notes from the Silent Stream Mine had mentioned an inquisitive by the name of Marlowe who had been investigating; asking around at several bars, they were directed to his offices in the Tavick's Landing district of Sharn. The Jade Foxes find his office ransacked, but behind it they found the halfling inquisitive being attack by a half-orc; Kraxor Tyraneroth promptly shoved the half-orc into the sea.
Marlowe was badly injured, but agreed to trade the information he had on The Burning Tree for escort to a nearby House Jorasco healing house. The Jade Foxes agreed, but were almost immediately attacked again, by what Marlowe described as smugglers from a gang known as the Cobalt Runners. Rahl Morninglow picked up Marlowe and charged through the market-place, and eventually they were able to get Marlowe to safety.
He revealed the location of The Burning Tree, a speakeasy hidden below Sharn, and gave them instructions on how to access it. Picking their way through the backstreets, the Jade Foxes found the secret entrance and headed below. They managed to trigger several traps, but eventually entered the hidden speakeasy.
The barman directed them to talk to Wyzim, a tabaxi sat in the corner booth. Posing as lyrium dealers, the Jade Foxes successfully tricked Wyzim into setting up a trade deal with them. However more crucially, Wyzim let slip that their target Masque could be found on the Maker's Destiny. The Jade Foxes left, and after some discussion decided to ignore the deal they had set up, and instead head to the airship.