I have been running the Lost Mines of Phandelver recently and just purchased Tales of the Yawning Portal. As my PCs are just starting in Thundertree and there are Cult of the Dragon members there, its provided a perfect hook into the Sunless Citadel module as the module mentions "the Sunless Citadel was once a secret stronghold of the Cult of the Dragon, located in the foothills northwest of Thundertree". So I made up a Sunless Citadel marker for the LMOP map. Thought it may be handy for someone else using this map or adventure hook. My Gimp skills are pathetic so text isnt 100% the same (appears the original map uses the Arethusa Medium font which is commercial) but doesn't look too bad... screenshot attached as well. Hopefully someone can use it as well :) Map Marker: Screenshot in Use:
