You cannot pre-order Tower of Mud and Straw at the moment, but you can read Parts I & II (or listen to Miltos Yerolemou's recording of them) for free on the website of Metaphorosis Magazine:

https://magazine.metaphorosis.com/story/2020/tower-of-mud-and-straw-i-yaroslav-barsukov/

https://magazine.metaphorosis.com/story/2020/tower-of-mud-and-straw-ii-the-adversary-yaroslav-barsukov/

Part III will go live on the 27th of November.

If you liked the novella, don't forget to rate it / leave a review on Goodreads:

https://www.goodreads.com/book/show/55236234-tower-of-mud-and-straw