is a celebrated literary horror novel by Gerardo Sámano Córdova (2023), published by Zando. It follows the grief-stricken journey of a mother who preserves a piece of her deceased son’s lung, which grows into a monster. It is not an erotic or adult-content book. The novel has won awards (e.g., Otherwise Award) and is acclaimed for its literary merit, body horror, and queer themes—but it is not "hot" in a pornographic or sexually explicit sense.
Finally, the phrase might simply reflect the of the book itself. Monstrilio is a hot commodity. It has been shortlisted for prestigious awards like the Locus Award for First Novel and the Reading the West Award. Because it is a relatively new release from a small press (Zando Projects), it is not always readily available in every library or country.