Light of Evil

is the thirty-ninth episode of Ultraman Cosmos.
==Plot==
Having its attempts thwarted many times, Chaos Header goes after Musashi, even invading Treasure Base to take Cosmos' power from Musashi. Ultimately this leads to a confrontation between Cosmos and Chaos Header's new form - Chaos Ultraman.
==Cast==
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==Appearances==
===Ultras===
*Ultraman Cosmos
**Luna Mode
**Corona Mode
*Chaos Ultraman
===Kaiju===
*Chaos Organism
==Home Media==
*Ultraman Cosmos Volume 10 features episodes 37-40.
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Category:Ultraman Cosmos Episodes
Category:Episodes