Place tests a body place bridge head, the neighbor warehouse gate and 窨井盖 all is unable to open, first along the stone steps under, meets a beggar in the launching road junction, takes his side the beverage bottle thus to lead away him, obtains beggar''''''''s bedboard, sets at the bedboard in the water, delimits the subsurface storage. On the belt the night vision mirror, investigates the heavy control bench, first takes away the spanner, then operates the jack, the jack altogether has six buttons, from top to bottom in turn is 1,2,3, 4, 5, 6, first according to 3, 5, 1, 2 smooth operations, obtains in the valuable box the informal memo, the devil and the circular magical instrument; Returns to the control bench, draws the tension bar to reposition the button, again presses 4, 5, 6, 3, 5, 5, 2 smooth operations, makes a connection the channel, obtains the spade pole from the channel toolbox, then turns on the front door to exit. Arrives the launching road junction once more by the stone steps, along iron bar above water pipe to opposite, the investigation 排水口, uses the spanner to move three screws, from bottow to top separately moves 4 time of, 3, 5, 排水口 starts to drain water. Returns by the old route, returns to the bridge head, uses the spade pole spade to open 窨井盖, gets down. On the belt the night vision mirror, pulls the wall side the hard ladder and horizontally on the canal, to another side rotation water valve drainage. The sewer to front, enters a secret room after a hard ladder. Investigates the old style loudspeaker to discover a slip of paper, must cause the loudspeaker movement to have to find puts the recording tape. Investigates the short table to obtain a rusty iron hook, the iron hook set on the wall chain link, underneath hooks again on the circular magical instrument, the magical instrument 12 格孔 happen to on wall circular character. Then takes the secret room most left side is burning the candle, sets on the secret room central candlestick, the candlelight shoots through the circular magical instrument on circular character, illuminates three characters, then the investigation secret room central dark hole, presses down on the wall three kind of characters which illuminates, the dark hole opens, obtains puts the recording tape, will put the recording tape to set on the loudspeaker, will rotate the crank movement machine, in the loudspeaker spreads a female''''''''s sound, the narration will be "the mystical organization" is carrying on the secret plan, will request Place to test prevents as soon as possible. Goes through a strategic pass.