Figured it out myself? but thanks a lot anyways! I also assumed each arrow on the halberd map to be TWO steps! But it is justONE step, aaarg! - so simple! And so utterly unobvious - that's spiderweb for you!
I am stuck at previous puzzle. I tried to look at the map and move in all possible paths - nothing works. I had no problems in the first trilogy with that. What am I doing wrong? How to pass the room after room with the crates and before the room with lights - please help!