As promised, here's my new Supergirl fan-fiction story for the upcoming July 4th holiday! And yes, I know that breathing nitrogen gas won't knock anyone out for several hours. But I figured that a bunch of small-time crooks who only saw a news story about inert-gas asphyxiation would likely expect that it would have the same effect as an actual anesthetic like ether or chloroform.
Anyway, hope you like the story!
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