"Der Quell des Todes" is a solitaire adventure by Philip Neumann for a character at lvl 1-5.
Subtitled: "Der Retter von Maraskan"
adventure ID: B11
Summary of the text from back of the book:
Boiling with rage and chained like a dog you sit there in a prison cell in harbor town Tuzak, Maraskan - accused wrongly ! Prince Herdin is a cruel man and gives you the choice: either to rot in jail or ... your choice is obvious, but your chances are slim. You start your journey to the cursed river, whose once clear water has turned into deadly sludge. But of all people trying to find the "Well of Death", no one has returned ...