Angela McAllister has written more than 90 books for children, including the bestselling World Full of . . . series for Frances Lincoln Children’s Books. To date, these titles have sold over 150,000 copies in the UK, 200,000 copies in the US and been translated into 28 languages.  Hvass and Hannibal is a multi-disciplinary arts and design studio based in Copenhagen. Since 2006, its founders, Nan Na Hvass & Sofie Hannibal, have worked in close collaborative partnership with illustrative and conceptual design in a number of different fields for numerous clients in Europe, Asia and the US. They have previously published Pattern-tastic Treasure Hunt and Technicolour Treasure Hunt for Wide Eyed Editions.