«moves deftly into the gap left by Harry Potter . . . all the ingredients of a gripping tale for young teenagers»

Telegraph

«A thrilling coming-of-age story that embraces fantasy tropes while keeping readers guessing.»

Publishers Weekly

«The Iron Trial is merely a setup and introduction, and promises to take subsequent instalments of the Magisterium series in a more complex and philosophical direction»

Starburst

«This is an incredible book . . . once you've started reading, its hard to put the book down. It's awesome! It's full of suspense and I cannot wait for the next book in the series to be released!»

Guardian Online

«The strange, subterranean Magisterium is vividly rendered, and a string of ominous revelations will leave readers eager for future installments. Fans of both authors will enjoy getting to know this well-rounded cast in the first steps of their adventure»

Publishers Weekly, starred review