"Let's go! Looks like I don't have any other choice." What else could Silas Stone do? That was his son, after all—the son he had only managed to bring back to life after so much effort. How could he possibly remain unmoved after learning that something had happened to Victor Stone?
Of course, there was another key point: even if Silas Stone sued Tony Stark and the Avengers, he had no confidence at all that he could get the Mother Box back.
Although the Red Room Laboratory was also a laboratory under an official organization, the official side truly had no certainty of reclaiming the Mother Box. After all, who told them that the Avengers still had priority authority in handling the supernatural incidents happening around the world?
So if they really went to court, on that point alone, the Red Room Laboratory would have no chance of beating the Avengers. As for hoping the official organization would use its authority to suppress the Avengers, that was even more impossible. The Avengers might not be able to directly overthrow the entire official organization, but those officials who valued their lives certainly would not dare to step forward casually.
After realizing this, Silas Stone also understood that if he wanted to continue coming into contact with, or even researching, the Mother Box, he had only one path: to step into this Portal that looked as if it did not exist, yet had emptied out the laboratory.
And Silas Stone could also tell that Tony Stark's side did not harbor much malice, because if the Avengers really wanted to deal with him and his son Victor Stone, there would be no need to waste so much breath on him.
As for the possibility that Tony Stark was after the Mother Box research