He Came To Corrupt Them - Then Became Their Responsible Adult

"Infiltrate the heroes, corrupt them from within.
By dawn, the kingdom will...
Does anyone know which way is north?
The moss points upward.
This may take longer than expected."
He came in black with crimson trim, with poison rings and candles dim.
He forged a smile, concealed his name, and joined the fools to spoil their game.
The rogue had lost the dungeon map.
The bard had packed one silk-lined cap.
The wizard brought 12 cursed antiques.
The fighter hadn’t slept in weeks.
He murmured, "Soon they’ll serve my plan," then took the compass from their hands. "Before I bend you to my
will, we need clean water, rope, and...
Why are you licking that?" "Could be a potion." "That is a door hinge."
He meant to lead their souls astray, but first they had to live a day.
He drew the route in villain red
and counted rations, cloaks, and heads.
He joined the wrong party to lead them astray.
Now he packs their lunches and is saving the day.