If your little one is a mini genius like Matilda Wormwood, we’re sure that they will be thrilled to be able to transform into the precocial Roald Dahl character. The sparkling design features puffball sleeves, sequin detailing and a glittering skirt that they can accessorise with the included wig and felt bag that we’ve already decorated with a felt dictionary and a felt ‘newt in a jar’ detailing.