“Steampunk is hot, and Clare conquered it! Methodically researched, her Victorian London is dark and romantic, and the strong-willed Tessa is an unexpected hero readers will love. Her love interest, Will, is the bad boy only Tessa can understand, while the sweet Jem is a possibility, too. At completion, the reader has more questions than answers, but the clarity of writing and quick plot turns will ensure its popularity.”
— VOYA (starred review)