Soul Stone

Not only that. Peter's Spider-Sense had already developed into a strange intuition. And now, that strange intuition was telling him that things might be far more complicated than they appeared! "Did Star-Lord tell you anything else about Ego during the journey?" Peter frowned and asked Thor. Although Thor did not know why Peter was asking, he still thought back carefully. Then, his brow slowly furrowed. "Quill told me about their first battle with Ego.