The truth behind Agrippa (and Alexander [spoilers]).

[Smithens]

just felt like pointing out hat the reason the shadow is chasing daniel is the he still has the orb, it left Agrippa because he didn't have the orb... if the shadow had the orb, i doubt it would have really cared what daniel did.

Except that Alexander took the orb from Daniel and brought it to his inner sanctum. Why didn't the shadow just pursue and kill Alexander? There were multiple points in the game where it was obvious that the shadow was going for Daniel specifically (example). Also, Daniel didn't carry it with him everywhere before he went to Brennenberg. He often left it at his house, I believe.

Once you touch the orb, you're cursed until you're dead.