|"While we're stuck waiting, why don't you tell us who's really under there?"
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The Hatching (flashback)
Pause and Effect (flashback)
The Master of Sound watched as Wu told Maya and Ray that he had a plan to defeat the Hands of Time. When Wu and Garmadon defeated the Time Twins using the Time Blades forged by Maya and Ray, the Master of Sound restrained Krux.
- 40. "Spellbound" (flashback)
- His hat has a design resembling a tuning fork.
- The design of his undershirt resembles Wu's 2012 Minifigure design, which never appeared in the show.
- When young Wu is referring to the Elemental Masters in "The Hatching", he seems to refer to the Master of Sound as "Smoke".