Hint:
-----
It is very important to keep your strength up in this game. You must be as efficient as possible in your actions, as there is very little spare food lying about. You don´t have to kill all the spirits to escape. There is no way out if you fall to the bottom of the ravine. As a guide, you will find listed the number of spirits you should have killed, the number of keys you should have and your ideal strength rating at the end of each section of
the solution which follows. This solution assumes, unless otherwise stated, that you eat all food as you find it, pick up all treasure and kill every spirit you see. Always crawl on ledges,
etc. You can move more accurately. Look down at your feet when walking near to the limit of a ledge, etc.