Wexler is an able builder of magical worlds and creatures, with labyrinths, an enchanted library, and a feisty, swashbuckling heroine at the centre. A story rich in action and allegory.

This lovely story is full of fairytale characters to spot - and the clever twists in the illustrations give even adults something to look out for. Lauren Beard's superb illustrations are full of detail - take your time over this book and share it with your child to get the very best out of it. A wonderful series

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

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!

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

The third-person narration, filtered through Callum’s delightfully insecure-and- overcompensating-with-snarky-bravado perspective, carries a tone that will likely have readers chortling in recognition. A promising beginning to a complex exploration of good and evil, as well as friendship’s loyalty

I definitely don't want to give anything away about the ending, but I have to give the authors credit for a really stunning climax which had me desperate to get my hands on the next in this 5-book series. I can't wait to find out where we go from here!

Pratchett's final work is a tour de force of compassion, great wit, and gleeful storytelling.

A worthy crown to Terry Pratchett’s phenomenal artistic achievement.

The last Discworld offering is a poignant farewell, both to Pratchett's readership and to his extraordinary world.

As ever in Pratchett's work, empathy and compassion are foregrounded. With its humour and humaneness, it reminds us, too, that its author, as Tiffany says of her deceased friend, 'is . . . was . . . unfollowable.'

Something to treasure

Funny, sad and extremely moving . . . most will likely consider it one of the strongest, and certainly one of the most – possibly the most – moving [of the Discworld novels].