Obi-Wan blasts another assailant away and dives into the speeder, turning a worried look behind him for an instant. Then he checks the readouts, and starts flicking switches. The controls aren't too unfamiliar. He can at least get the engine thrumming while Vader... does whatever he's doing.

This has been an interesting day, to say the least.

Obi-Wan replays what he's seen in his mind. The younger man's moving more slowly, though with no less efficiency. Obi-Wan still doesn't understand why Vader hasn't either left him to be dismembered or possessed, or hasn't truly taken him prisoner to be tortured later. This feels far too much like he's giving Obi-Wan free will.