J.M. Sidorova is a Russian-born American biomedical scientist and author of speculative fiction. Her literary fantasy novel The Age of Ice (Scribner/Simon & Schuster, 2013) was featured in Locus Magazine's recommended reading list, and received an honorable mention on Tor.com’s best fiction of 2013 list. Her second novel, The Witch of Prague, is forthcoming from Homeward Books in 2026. The book tells a story of a young witch-in-training, and is set during the historic events of Prague Spring of 1968, a popular movement for democratic reform in Czechoslovakia cut short by a Russian invasion. J.M. is a graduate of the Clarion West workshop. She began publishing speculative fiction in English with a short story The Witch, the Tinman, the Flies, (2010, Azimov’s). Her short fiction ranges from historical fantasy to science fiction, and has appeared in Clarkesworld, Abyss and Apex, Giganotosaurus, and other venues. Her stories can also be found in the anthologies Science fiction by Scientists (Springer, 2016), Welcome to Dystopia (OR books, 2018), and Devil’s Ways (Dragonwell Publishing, 2020). She lives in the Pacific Northwest. Learn more about her at www.jmsidorova.com.