Für die Ewigkeit (For Eternity) is a is a promotional adventure for Das Schwarze Auge. It was a loose insert to Mephisto magazine No. 47.
The characters accompany a half elf mage to find out about mysterious monoliths in the vicinity of the city of Enqui. The stones are high elf artifacts erected several thousand years ago. The characters have to solve the riddles of the past while fighting the problems of the present.