[4], When she tried to stop Malekith from making a deal with Dario Agger for Laufey's skull, Thor was suddenly attacked by Cul Borson, who possessed the Destroyer Armor, under orders from Odin to retrieve Mjolnir. Odinson was considered missing. When the Destroyer quickly overpowered the Asgardians, Thor ordered to them run away before they were caught in the destruction. Selvig then suggested contacting a colleague of his who could possibly help with their situation.

As Jane assured the patient Dr. Blake was skilled with using a mallet, Blake thought to himself that she does not know the half of it. Foster then chased after Thor, who was kicked down the cliff and had his hand cut off by Loki. Soon after, they noticed a commotion from the Asgardian Dungeons, so Frigga told Thor to investigate it, promising to look after Foster. Having completed their task, Foster and Selvig then left the tower, warning the people in the library to also get to safety.

(Thor attributed Foster's new liking for adventure and fighting spirit to the presence of Sif's spirit within her, although it is possible that Foster's personality had simply evolved this way on its own.) When Foster turned around, she became excited to see that Thor had returned, and rushed outside. Arriving in Himinbjorg, Foster noticed Heimdall, who welcomed her to Asgard. Foster and Erik Selvig run from the Dark Elves. Seperation from Mjolnir: Similar to the previous enchantments involving Don Blake and Eric Masterson, Thor's powers were derived from Mjolnir; separation from it for more than a minute resulted in her powers fading quickly. She found out of Thor's return through the footage of the Battle of New York; this left Foster disappointed and angry that Thor didn't attempt contacting her. Jane was restored along with the fallen heroes and everyone else lost in the Decimation by the Hulk. Imprisoned in her chambers, Foster was brought a meal, which she refused, just as Sif arrived and knocked out the two guards. Rocket snuck into her room and extracted the stone from Foster's body, causing her to alert the Einherjar of his presence. Foster then exited the warehouse, where she discovered the police had arrived and were talking to Darcy Lewis, who had called them. [40] During the Civil War, she opposed the Registration Act and joined the Secret Avengers, treating many of the members. Thor then taught Foster about the Convergence, an event where the Nine Realms align perfectly, which was how Foster was transported from Earth to the Aether's location.
When Thor uncuffed Loki, Foster watched as the God of Mischief betrayed his brother, stating him with one of his daggers, unknown to Foster that it was apart of the plan. This goal proved unsuccessful when Thor, after stealing into the temporary S.H.I.E.L.D. The two then drove down to the crater site, determined to retrieve their possessions, which Foster was nervous about doing. [43] Jane and Blake go on a date after an initially turbulent reuniting. In Tromsø, Jane became frustrated due to no-one giving her a reason for her being there. [9], Jane received a brutal beating from Mangog despite her best efforts. Later, Foster fell asleep under the stars with Thor by her side. Foster found herself deeply interested in what Thor was saying, as well as developing strong feelings for him too. [13], Some time after the Ultron Offensive, Foster broke up with Thor. Foster attended the ceremony to pay her respects to Frigga. With the Convergence aligning and Malekith unleashing the Aether's power, Foster noted that they were out of time and went to retrieve the spikes. To Thor's surprise, Foster succeeded in capturing the troll king, Geirrodur, with his own spear; Thor himself defeated Ulik. They delivered Thor to the hospital and signed him in, giving them his name, and then returned to their research base. Malekith extracting the Aether from Foster. In order to finally stop Mangog, she tied him up with chains originally created to bind the Fenris Wolf before tying the chains to Mjolnir and hurling the hammer into the Sun, taking Mangog with it. As they struggled to drive through zero-visibility conditions, the van collided with a man who had stumbled out of the dust and into their path. Strapping the criminals to an operating table with surgical tape, he attached it to his magic hammer and "threw" the criminals to the police station. The Dark Elves, having got what they wanted, began to leave, with Kurse throwing a Black Hole Grenade at them, causing Loki to push Foster out of the way to save her. During Loki's assault on Earth, S.H.I.E.L.D.

[14], Jane and Donald were kidnapped by Thug Thatcher, but Blake escaped and became Thor. She tried to open a wormhole but failed.
When an alarm went off, Foster hid from detection and called Selvig, telling him she went with Thor and to come find her if she didn't return. Foster drove up to him and offered him a lift, deciding to help him, as she wanted to get her research back.