I suppose I also want to say that ref 333 arguably sets up a bit of a false expectation. You know, the ref with this paragraph.
"The books are set in a plain black binding. They are written in a strange, unfamiliar language, somewhat similar to Latin, as far as you can tell. Flipping through the pages, you spot several disturbing illustrations - faceless beings, writhing on the ground as if in great pain; an opened box with a whirlpool of ghastly clawed things (demons?) springing out; and one of a robed man holding a star shaped crystal that seems to be shooting out a bolt of searing light straight at a group of hideous and evil looking beings standing nearby."
From that, I really assumed that
SPOILER
You could use the Star as a ranged weapon, and so you were intended to blast D'Onofrio with it while he was fleeing. While the real solution is undoubtedly more interesting, I still consider my initial interpretation to have been completely justified based on the text.