As the needle was shot forward, on instinct Nick merely thrust a portal in front of himself to catch the needle before it could come in contact with him. Since he did not know what the needle did, it would not be wise to let it even come in close contact with himself and so he did not. The portal however would not redirect the needle back at the sender, but the surface of the sun seemed a fitting place to send the offending projectile.
"My business is my business, and not yours."
It was true, as his business was on a need to know basis. Reminding himself that no one needed to know of his business besides himself Nick looked at Kaleb for a moment, and then conjured a spell of his own, hundreds of darts that would come at Kaleb from all directions. If the darts hit, they would compel the person to answer one question truthfully of the person who asked them.