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You're feeling sneaky after having pretended to be a submarine for a while. You'd be even sneakier if you didn't keep making high-pitched "ping..." noises at regular intervals.
Decreased chance of random PvP Attacks
- An Olympic-Sized Swimming Pool (Do Submarine Sprints) (50 Adventures)
- Increases the frequency of non-combat encounters by 5%.
- Silent running is a stealth mode for submarines in which effort is made to reduce noise to avoid detection.