How did Artemis Fowl get two different color eyes?
In The Lost Colony, Artemis and Holly must travel through Limbo to help a new friend. Going through Limbo the first time, in the beginning of the book, Artemis' first and middle fingers are switched. The second time, Holly and Artemis' left eyes get switched. After they realize this, though, Holly has to use her magic to re-size their new eyeballs to fit their heads.