The Indigo wolf

When Arthur finds out about Merlins magic during a bandit attack, Arthur banishes him from Camelot. After that, Merlin has no home to go to. For a while, he travels and lives in caves. He barely gets anything to eat. Then he stumbles on an old castle. In the castle there is the recipe for a potion to turn into a wolf. Merlin makes it, but he makes a mistake. Meanwhile, Arthur is going crazy without Merlin. A few days after Merlin's banishment, he sends out a search party for Merlin, regretting banishing him. After a weeks of searching, they still have not found Merlin. To distract himself, Arthur decides to go hunting. What will happen when he sees am indigo wolf with too familiar eyes during his hunt?

Warning: This is a Murthur fanfic. If you do not like Merthur, do not read.
This story was not my original idea, it is just elaborating on a oneshot done by @Merlintheclotpole . If you want to read the original oneshot by him, its in his Merlin oneshot book.