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You find him in o'mels secret tunnel in rivet ravine
Area 2 rivet ravine but first you have to beat the game
It is probably in Rivet Ravine
Rivet Ravine
in rivet ravine
The chief guard in Rivet City, (known as Harkness) can be found usually in the Rivet City Market area of the ship. If you have not entered Rivet City yet you can go to the intercom near the edge and talk to Harkness and he will connect the bridge for you.
You can find it in rivet ravine area 1.
Rivet Riven
Rivet Ravine Area 2
in rivet ravine
You can find him at the end of the secret tunnel in Rivet Ravine.
you find elasmoth in one of the tunnels in rivet ravine.......