Okay that's... in his thoughts words 'freaky' and 'fun' are fighting for the place in this sentence and as Lucas couldn't decide on one, he just left it as it was...

"Just a minute!" He shouts back.

Okay... I am dreaming. This one is for sure. *Ouch* ...or maybe not... in movies pinching works...
Okay, if I were in a fantasy realm and became a psion... best way to learn anything would be...
His eyes are drawn back to the crystal on his desk. He grabs it...

[telepathy] "Okay, assume that I lost my all memories of this place and possibly life. Now, I need to know what is going on and what should I do. Keep talking... and in easy to understand words, I still feel half asleep.
Last coherent thoughts as he holds the crystal and looks at it with expectation was Am I really talking to a rock and expecting it to answer?