The Croft Manor (part 7)
Tomb Raider Anniversary Game Guide and Walkthrough
Go to the second matress. Climb up, and do a backwards jump onto the pole. Then quickly jump on the second pole, and on the wall.
Continue climbing and jumping backwards, until you get to the artifact.
Go to the third mattress. This one you'll have to do three times. (not counting the falls you'll take.)
First you'll climb, and go to the left. Jump and use the grappling hook. Swing to the other side.
Go down.
And into the special enclosure to push the button. A metal rod will rotate in place.
Go back to the no. 3 mattress.� This time climb, and go to the right.
Do a backwards jump.
And then to the wall mounts.
Continue.