Castle Master 2 - The Crypt

Hint:
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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.