CHILD GENIUS ARTEMIS FOWL IS IN TERRIBLE DANGER HE JUST CAN’T REMEMBER WHY! Opal Koboi is back, and the power-crazed pixie wants revenge. But knowledge of the fairies has been erased from Artemis’s mind, and when you don’t believe your arch-enemy exists, it can be quite tricky to defeat them. It’s unfortunate that Artemis’s only hope is a farting dwarf. Enter Mulch Diggums . . .