Grimrock

I got thru , I did not pick up the scroll before,massive airhead attack.thanks again.

Thanks I'll go over everything again and see what I missed.Thank You

I grab the book walls should slide up, opens to sulphurous potion.Stand on pressure platee door opens to crystal of life and on to puzzle room,arrow rock skull key.the walls are not opening and no way to advance to potion.Thanks for your info.

The walls on either side should slide up after you pick up book of wisdom.I seem to be at a lose.Any help ?

This is my second run ,I pick up the book of wisdom on level 9 and nothing opens up,any ideas?