Novella Recommendations

[Ammanas]

I have not read too many novellas so I wanted to create a place for people share any that they really like. I'm assuming we are all familiar with the Sanderson ones my personal favorite being Emperor's Soul. The only non-cosmere novella I can recall reading is "The Guiding Nose of Ulfant Banderoz" found in the Songs of a Dying Earth anthology  (a very good story and all around anthology). What recommendations do you have?

[Modal Seoul he/him]

I recommend Legion to all who have not read it. I love the characters and concept. Brandon should really expand it into one novel.

[Left he/him]

For those who have read Memory, Sorrow, and Thorn by Tad Wiliams, he wrote a novella to bridge the original books to the upcoming books. The novella is The Heart of What was Lost, and was really good. 

I'll also mention Patrick Rothfuss's polarizing A Slow Regard for Silent Things, a quircky little book about one of the side characters in the Kingkiller Chronicles.