Disclaimer: Any characters/situations recognisable from the Artemis Fowl books belong to Eoin Colfer and his publishers. Not me.

8. Black (114)
The skies, if there had been skies, would have been an angry dark grey, only a shade below/above black. And if there had been skies there would have been clouds, dark, menacing, foreboding clouds that spoke in low voices of terror and pain. And these, if they existed, would be slit open with a razor, the lifeblood of the damning clouds spilling forth in torrents and floods.

Underground there is no rain. But, without it, there can't be any rainbows either.

It's just black, all the different shades of black.

But above it's not much better, colour serving to highlight those parts that are bland, lifeless - all trying to hide behind the rainbow.