Vader felt as disturbance in the Force. This had been happening more in recent years more often than since before the Jedi were destroyed. But what was different about this one was that he did not know who it was, yet it was somehow familiar. It was like himself, like Luke, yet it wasn't Luke – he remembered the destruction of the Death Star all too well. Still, it seemed to be a relative. It seemed to be a young relative, now that he thought about it. Could Luke be a father already?
He was so deep in thought over this new development he had completely lost track of what the admiral in front of him was saying, except that they had not yet.
"You are dismissed, admiral," he said. "Do not bother me again until you have some information on the whereabouts of LukeSkywalker."
The admiral couldn't get out of there fast enough. Vader wasn't surprised – he'd long been used to that from the Imperial Military. They knew he was used to being instantly obeyed and had no patience.
Well, he had a new target. He was going to follow this disturbance until he found out who it was. He had found all the Jedi. He was sure this would not be harder. And no better time to look than from his own Executor when on his own business. There was certainly no need to inform his Master of this development yet. After all, he hadn't even decided what he was going to do when he found this person. No need to alarm Lord Sidious that the Rule of Two might shortly be broken – or kept with Vader as the Master.
He was going to have to set a trap. If this really was Luke's child, finding one could very well lead to finding the other. There was no way his still innocent son would let someone be in danger, especially someone he loved. He might not even have to explain much about what a child was doing on the Executor. He didn't think any of his men would question him closely as nobody wanted to challenge a Lord of the Sith.
And then he would have all his family that was left – everyone he wanted to mold into his dark design.