In this story from an anthology that was never published, a young Vukotich and his mentor encounter goblins in the woods and make a deal with a strange wizard.

Freedom in an owned universe article : https://pariedolia.weebly.com/nimh/oldhammer-lit-101

Awesome Lies on colour magic:

https://awesomeliesblog.wordpress.com/2023/10/29/the-colours-of-magic/

@lewiskernow