So far only read:

~ The Best Horses Are Found in the Sea, and Other Horse Tales to Emerge Since the Rise by Beth Cato - 3*
A scholar goes hunting for stories about horses. I guess they are extinct now due to the big flood. Stories have them flying or swimming instead of running on four legs like we are used to.

MC witnesses a crime (alcohol being moved) and is falsely told she can be taken to see the place of the swimming horses. Instead, she is hit in the head with an oar. Grabs seaweed... no a horse's main and is brought back to shore. Was that her imagination or real?