Let's reflect for a moment. I think even though Vader may be evil, he still loves his son. Forget about the part where he cuts Luke's hand off. Anakin's hand was cut off while trying to help Obiwan too. Maybe that was nothing to Vader. But when the emperor declared that Luke must be killed because Luke has the power to kill the emperor, Vader quickly suggests that they make Luke join them instead so that they can be more powerful.
Hang on. Since when did the emperor have prophetic abilities? When Luke and Vader were having a fight in the climax, Vader offered Luke to join him so that they can rule the galaxy together. So Vader has his own plans to get rid of the emperor? Ah...pure evil....
Enough said. I hope to start my reading on The Return of the Jedi soon.
