"Die Tage des Namenlosen" is an adventure by Michelle Melchers for 3-5 characters at lvl 6-12.
adventure ID: A31
From the back of the book:
"Evil never sleeps ! If it weren't for the few brave heroes of Aventurien, dark cultists and servants of the Nameless would have seized the power - but there is still hope."
Cover Artist: Ugurcan Yüce