Obiwan notices Anakin's survival!
The third sister told Obiwan. "Anakin Skywalker is alive"
In the Legends novel, I learned from the Holonet coverage of Tatween's bar. "He was alive!" In Kanon, the emperor seemed to calculate the risk of showing Vader on the Holonet.
It is better to hide Anakin's survival in order to get the interrogator to hunt Jedi.
I must advise Organa and Owen as soon as possible.
"Twin fathers are alive"
Vader feels this force phenomenon. (Like a CW final season mall with wide open eyes in Bakuta hot water)
"Did the third sister finally find Obiwan!"
However, it is not the stage to report to the emperor. Anyway, Vader wants to meet Obiwan.
He escapes to Obiwan and Leia, but succeeds in enticing Obiwan to feed on Leia. If the big interrogator didn't break in, I would probably have secured Obiwan.
The angry Third Sister defeats the Great Interrogator. Are you dying?
If you let Yoda know that Anakin is alive, he will think about the change of strategy and the future. It was Yoda who came up with the idea of hiding Luke in Tatween in the first place.
I lived on the assumption that Obiwan, Yoda, Organa, Mr. and Mrs. Lars, and Anakin died.
But when Anakin was alive, that premise was broken.
He had been deceived by an emperor who did not make Vader public for 10 years.
Even though Vader and the interrogators rushed to find Obiwan, they couldn't break through for 10 years.
So will Vader go to contact Obiwan?
Will the emperor command it?
Vader was surprised at the death of the Great Interrogator. And the third sister kidnapped the daughter of a former Senator without permission. It is likely that Vader will take bold steps to prevent the situation from getting worse and offending the emperor.
Interestingly, however, when things get worse and Leia gets a lot of attention, there's a phenomenon that makes rumors about Leia's identity. Vader will be wondering. "Who is Leia's true parent?"