I think most children go through a phase of being afraid of the dark. But when you're a prince who grows up to be King and have control over everything, you have much more power and influence - even over the dark. The King convinces everyone how bad the dark is by spreading rumours about it until the people agree to ban the dark. But with an artificial sun, as well as multiple devices that mean you can never be around the dark, and the light police maintaining darkness. When the people realise their mistake they suddenly regret their decision but is it too late to claim the darkness back? This could be seen as a cautionary tale for our Brexit times and it's hard not to see the message of the influence of ultimate power versus the will of the people. The illustrations very cleverly use a monotone palette with only shades of yellow to offset the darkness. This is such a clever, and funny, book!