are there any dungeons/spectacular locations in the Mere of Dead Men. Sunken temples? My high level group wants to explore!Oh, yes! The incredibly talented Eric Boyd did a multi-part dungeon set there, in DRAGON Magazine! Check his website!
— Ed Greenwood (@TheEdVerse) October 10, 2017
If I recall right they are in Dungeon Magazine 72-73 "Mistress of the Mere" and "Eye of Myrkul"
— Zoltar Sage Advice (@SageAdviceDnD) October 13, 2017