Warlock in the Iron Mask

Merlin was captured and spelled into an Iron Mask which prevents him from using his magic.
Arthur rescues him and has to find a way to remove the mask.
There is no actual rape-non con in the story. Only prior. Only a small amount of Torture in the story and some descriptions of it. Non-graphic. Just at the beginning.
This is Hurt/Comfort Drama Romance with a dark element thrown in.
It is mostly about Arthur taking care of Merlin.
Don't own Merlin (BBC) not making any money
Comments are love. :) Thank you!