Lydia finds herself in a "fugue state," unconsciously driving to a swimming pool where she discovers a body—the first clear hint of her identity as a Banshee .
Chris Argent points out that California fireflies are typically not bioluminescent. Their sudden, bright glow indicates a massive surge in local supernatural energy . FirefliesTeen Wolf : Season 3 Episode 3
Stiles discovers that recent murders aren't random. The victims (all virgins) were killed via a ritualistic "threefold death"—strangled, throat slashed, and head bashed—revealing they are human sacrifices . 💡 Scientific "Firefly" Context vs. Fiction Lydia finds herself in a "fugue state," unconsciously
Early in the episode, a jar of fireflies shatters near Boyd. The swarming light momentarily distracts him, allowing two young children to escape his attack. FirefliesTeen Wolf : Season 3 Episode 3