I have defeated thrall and moved on passed the part where you pull out two bookcases and jump side to side on them. I run along the wall to a pole I swimg and land on a beam. I travel from beam to beam and reach two poles I swing and land on a concrete wall.
I get onto the beam leading in the hole in the wall and jump down. I move out onto a ledge the jump on a hexagonal structure kill a sand monster move on to the next one and jump on a ledge. I defeat another monster and jump across.
I reach a platform and jump down. I save and continue down then left swing on two poles past a turning spikey thing and run along a wall kill a monster on the wall. When I land a spikey armidillo attacks me at the end of the corridor theres a tatty door with a beam and some rope tied on it.
How do I break it down I ve tried stabbing the monster and leading it to the door it explodes and nothing happens. Please help.