Soul Stone

Soul Infinity Stone
Soul Stone is one of the six infinity stones created during the Big bang. When The Red Skull held the Space Stone (Tesseract) in his Hands, he was punished and sent to vormir in Captain America - The First Avenger (2011), to guard the soul stone. Its first apearence was in the Guardians of the Galaxy (2014), in a hologram when The Collector was explaining to the Guardians about the 6 Infinity stones, And then Thanos went to Vormir for attainig it in Avengers - Infinity War (2018) with his Daughter Gamora. He sacrificed her soul and attained the soul stone.

In Avengers - Endgame (2019) the Black Widow (Natasha Romanoff) and Hawkeye (Clint Barton) travelled to Vormir to retrieve the stone in an attempt to bring back all those who Thanos killed. In the end, Natasha Romanoff sacrificed herself to give Clint Barton the stone. The stone was then returned to Vormir by Captain America (Steve Rogers) but Natasha Romanoff was not revived.