Grimrock

I found a Chitin Helm, Crossbow, and maybe the Huntsman's Cloak on level 4.

I'm amazed that I missed so much. This game is just chock full of secrets.

So I'm stuck on 2 puzzles.

1:How do I get to the book on level 4 in the trial with all the pitfalls?

2:How do I open the door on level 5 with the note that says the guy put the lever in an upright position?

The earthquake is unrelated. Also don't put an item on the plate. I'll try and give you a hint in the form of a smiley.

As the riddle says, you've gotta be a patient man and wait. It's much more simple than you think. Also you might want to move when it opens.

I am getting the same problem. Right clicking the weapon to attack randomly stopped working.