HoA Ep.8 - Down the Water Hole

It is dusk and Angus, Dipple, and Shiek join Oliver on the docks at their pre-determined meeting time, but as they look around Thoradin and Nimdioc are nowhere to be found. Thoradin is down deep beneath the lighthouse in the old dwarven tunnels, biting off more than he can probably chew as a magic note flutters before him. Meanwhile Nimdioc is falling down a raging dark waterfall within the mirror plane of the Shadowfell. Could things get any worse? Will they somehow make their way out? And who is this mysterious female assassin Nimdioc is so set on catching?