Grimrock

Hi!

I tried to throw every kind of stuff in the pressure plate... but nothing happens...
I know that the head in the wall in the other side of the gap should shot a fireball that i must intercept with mine, but it doesn't.
Anyone have a clue of what could be happening?

Thanks!

Hi guys!

In the level 6 I can't find how to open the secret wall where you need to go to find the secret orb...
Someone could give me a hint please??!!