I thought that this was a great back story for our new player (Rogue/GhostWalker). He calls himself Hunter and is a third son of a minor WaterDeep noble. He's been a bounty hunter his life and was recently hired by a woman named "Mother M" to "take care of" a problem by the name of Loris Raknian.
He failed and had to Shadow Walk to escape. On the plane of Shadow he encountered the PC's as they were Shadow Walking to get to the Isle of Tilagos. A brief conversation ensues..... Much better than finding someone in a dungeon and they then join the group. Gives him motivation to hate Loris as much as the PC's.
Loris has since fled to Cormyr (FR Setting) and the PC's are planning on tracking him down. Hooray for side quests.
Sounds good.
The Waterdeep nobels are all merchant families.
That might become important in the future.
He will have connections to sell or buy things.
Sounds good to me, especially given the number of Ghostwalkers that have shown up in Forgotten Realms novels within a year's time (Ghostwalker being the first one, and one of the Wizards series books will feature one as well in the coming months).