History
The Black Priests, led by Doctor Strange, used the Great Key they had stolen from Yabbat Ummon Turru,[1] one of the Black Swans, to open this reality's door to the Library of Worlds.[2]
See Also
- 1 appearance(s) of Earth-1903990
- 2 mention(s) in handbook(s) of Earth-1903990
- 2 image(s) of Earth-1903990