City of Steam by Carlos Zafón is an extension of the literary world orbiting "The Cemetery of Forgotten Books." It delves into unknown facets of some characters and explores the history of constructing the legendary library. The themes and atmospheres are familiar to readers of the saga.

Accursed writers, dreaming architects, assumed identities, fantastical buildings, and enchanting descriptions weave a new and astonishing world, especially in the dialogue crafting and storytelling.

This collection of stories showcases Zafón's unique skill in creating distinguished literature, blending elements from coming-of-age tales, thrillers, historical novels, gothic and romance genres, all enriched by his artistic touch.