Ereshkigal and Ishtar Picture

from wiki:
The goddess Ishtar refers to Ereshkigal as her older sister in the Sumerian hymn "The Descent of Inanna" (which was also in later Babylonian myth, also called "The Descent of Ishtar"). Inanna/Ishtar's trip and return to the underworld is the most familiar of the myths concerning Ereshkigal.
Fenrir's Escape
Ereshkigal and Ishtar
"Word Weaver"