Grimrock

Well I just managed to solve it.
The fact is throwing daggers get much more far if you throw them with the attack button instead of just dragging them in the top of the screen.

Next to it there's a room plenty os slimes. At the end of this room there's a switch on the wall that opens a wall to a green gem. The green gem is the feeding XD

I'm in level 4 and I managed to retrieve 3 of the 4 scrolls but when it comes to get the fourth one in te Time and Tide teleport there's no way to solve the puzzle. In the first room, the one with a timed switch that makes appear a teleport far from me for a single sec and than makes it disappear. O...