City of the Dead - Crawlspace and Room Below Trapdoor

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After dragging the dead soldier off the trapdoor, and returning to the DEAD-END ALLEY WITH THE CRAWLSPACE, as shown in the previous section, climb onto the block in the corner and crawl backwards into the small opening.

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Drop down into the passageway below...

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...and follow it...

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...to a room with a lever and a small medipack. (Lara won't target the rat that scuttles across the floor, so we don't count it as an enemy.)

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Use the lever to open a trapdoor above. This will work only if you've dragged the dead soldier's body off the grate, as described in the last section.

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Grab the medipack if you didn't already and climb up through the opening.

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Turn around and jump straight up to grab the edge of the crawlspace.

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Pull up and crawl forward until Lara can stand.

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Follow the passageway up to a second lever.

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Use it...

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...to open a door above the grate in the ceiling. You can't get there from here, so return to the DEAD-END ALLEY WITH THE CRAWLSPACE, where you left the motorcycle, either through the crawlspaces the way you came or via the streets if you destroyed the machine guns.

[City of the Dead Walkthrough]