"Sigyn, Loki's wife, sat there and held a shell under the poison, but when the shell was full she bore away the poison, and meanwhile the poison dropped on Loki. Then he struggled so hard that the whole earth shook therewith; and now that is called an earthquake." - Lokasenna
When Jane becomes possessed by the Aether, Thor takes her to Eir, the goddess of medicine. Assisted by seven nurses, they test the Soul Forge on Jane. It has been theorized that Sigyn, with her Vanir healing powers, may be one of these girls.