Geoff is really really sick and hospitalized. The problem is nobody knows what it is. It is some infection in his arm, but since they can't find the source of the infection they don't know how to treat him. The only way out seem to be to amputate the arm! Then Johnno realizes Geoff was out at a man called Rocket who had some old equiment that might have leaked hydrolic fluids. They test Geoff, Johnno was right, and Geoff is treated. And he can keep his arm.
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