The sequel to Ink, Iron, and Glass, which Kirkus's starred review called exciting and original, Mist, Metal, and Ash stars Elsa - a genius gifted with the ability to create new worlds by writing their descriptions in specially crafted worldbooks. Now Elsa's in a race to find a special worldbook that can alter the Earth itself . . . or destroy it. To retrieve this ultimate weapon, Elsa will have to become a double agent, leaving her friends behind. She'll also have to face her greatest weakness: the handsome, brilliant boy who betrayed her. The first book in the duology, Ink, Iron, and Glass, received two starred reviews!