1. in The Hobbit, Dragons are called Worms
2. in The Hobbit, Legolas's eyes glow a Fremen blue
3. in LoTR, after the last Great Worm is dead, Legolas's eyes no longer glow
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4. Legolas can walk on tightropes or snow, basically jumping between points on the path, as mentioned in lotr.
5. Kwisatz haderech literally means "jump of the way"

actually it means "shortening of the way" and is about the creation of lembas bread
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