40 Fathoms - Stacked Flooded Rooms - "Like Caesar" Achievement/Trophy
In the last section we completed a challenging timed run past a series of burners. In the next room, take a dip in the pool to draw out a barracuda (10). Climb out of the water and shoot it from above.
Now comes yet another tricky sequence. To unlock the "Like Caesar" achievement/trophy, you must complete the next section in one breath. Again, save the game. Swim down and forward, then up...
...through a trapdoor in the ceiling.
Swim up through two more narrow, stacked rooms, each with a square hole in its ceiling. You'll need to corkscrew a little as you ascend, since each hole is in the diagonally opposite corner from the one below.
...
In the third room, there's a lever just above the hole. (This lever is straight ahead if the decorative ladder is on Lara's right.)
Pull the lever to open a door in the bottom room. You can't see it, but first trapdoor, in the room where you started, also closes. Now there's now no way to get air.
Roll to face away from the lever and swim down through the first square hole...
...and the next.
At the bottom, swim through the door you just opened.
In a little alcove on the right is SECRET #3, the Gold Dragon (6), with a bonus of 4 bundles of harpoons (7-10) if you've found all three secrets. Grab it, roll, and swim out of the alcove and to the right. Pull the second lever...
...to open the trapdoor at the very top, letting in 3 more barracudas (11-13).
If your air meter is still about 1/4 full, you can save here. Just be sure to use a new slot, just in case. Roll...
...and quickly swim away from the lever, and back up through the stacked rooms...
...
...
...to the top.
"Like Caesar" should unlock as Lara's head breaks the surface. Climb out of the water and either shoot the barracudas or move on.
NOTE: Alternatively, if you don't care about achievements, swim up through the stacked rooms, pull the first lever, swim down, pull the second lever, swim back to the top, climb out of the water, and shoot the barracudas. Then swim back down to get the Gold Dragon, return to the top, and continue on.
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