Fateful Mark

From: Detective
Description: I probably shouldn’t have gone after the Collector alone. The suspect was zigzagging through the dark streets and turned around the corner. Something flashed, and I found myself flying into the darkness at full speed. Finally, an unusual mark appeared before me.\n I’ll show it to you with the help of some artifacts.
Completed: In my old notebook, there’s information about those New York cases, and drawings of the symbols found after the disappearances. Look, under the influence of the City’s artifacts the symbols are forming the mark I saw when I fell into the portal.\n The Collector wore such an amulet.