This is the forum for helping you out if you're stuck or if you want to discuss the nitty gritty details of the dungeons within Mount Grimrock. Warning: forum contains spoilers!
Use the holes to drop down to level below, use your healing potions and whatnot to get back into fighting shape, use the teleporter (which gates you onto a different tile on the Cube level every time you use it.) hit the cube a couple of times and escape back again.
I just found a handy pillar near some pits to run round, this encouraged the cube to squish any enemies chasing me!
I recommend bombs, I chucked a few at it, in combination with some spells and throwing weapons and it took it down. Just make sure you save every now and then.
Daniel.
A gently fried snail slice is absolutely delicious with a pat of butter...
no way i can finish the game the mob's spawned are too numerous and sty in spawning points... tried no less then 50 times and died in 20 second everytime