The Queen activates a self-destruct sequence on her crashed cruiser. Because the facility sits on a very thin part of the planetary crust, the resulting explosion would trigger a volcanic cataclysm capable of destroying the platform and Atlantis itself.
In the Stargate Atlantis: Legacy novels, this specific Queen is identified as Cold Amber and revealed to be the original "Queen Death". [S3E18] Submersion
Fans often note that Teyla is psychicly compromised or "taken over" in the 18th episode of every season up to this point. The Queen activates a self-destruct sequence on her
The episode is noted for its "spooky" and claustrophobic feel, often compared to the movie The Abyss . Key Plot Points Fans often note that Teyla is psychicly compromised
Sheppard and McKay use 10,000-year-old Ancient diving suits to reach the cruiser. Teyla uses a mental "counter-bluff" to trick the Queen into deactivating the self-destruct codes, allowing Sheppard and McKay to eliminate the Queen and save the city. Fun Facts & Trivia