[1] As with other Green books, it is written in a style which combines dramatic storytelling with plenty of wry humour and light relief.

To get to his destination Rupert must pass through the Darkwood, an area in the forest where no light ever penetrates, where nothing lives except demons.

Rupert, his Unicorn, Princess Julia and the Dragon set out back towards the Forest Castle but have to pass through the Darkwood again.

The dragon offers some of the last of his strength to enable Rupert to obtain the Rainbow Sword which banishes the darkness from them and heals their wounds.

Prince Rupert is an unwanted second heir to the throne of the Forest Kingdom, behind his elder brother Harold.

The High Warlock proceeded to drink himself into oblivion and bury himself in study of magic theory, until Prince Rupert came to the Dark Tower for his aid.

Abstract concepts made flesh, thoughts and ideals, dreams and beliefs given form and substance in the world of men.

He – or more appropriately: it – created the Darkwood thousands of years ago, darkness made manifest in the world.