Poor me forgot to search the canine statue. When i got back there was only the option to "desecrate" it. I then read, that it is possible to start the whole quest anew from Sorpigal, which i did. I sold the ruby key to start from the beginning, I then followed the quest line from start, but once i enter the location C1 15,15 it would not offer another chest containing the ruby whistle, even though i spoke again to Zom and Zam.

Is there any other way like hex editing to get the gold key (and ruby whistle), or to truly reset the whole qest?

have ya tried talkin to the seer

Found the solution:

"[url=https://www.eskimo.com/~edv/lockscroll/WhereAreWe]https://www.eskimo.com/~edv/lockscroll/WhereAreWe[/url]/"

This tool, set in "Trainer Mode" lets me open characer inventories and add items to my hearts content.
So SO SOOOOO good!
I thought I invested 50 hours into this game just to get stranded because i forgot to press "S" once.

There only remains one qeustion. Why is there no paypal button to reward my savior?!
If you read this ... You sir (or madam), are a lifesaver, a genius, a wonderful wonderful person! Thank you for your answer. I do not remeber encountering a seer in MM1

But anyway, the problem is solved and here i go again. Adventure awaits!