What am I looking for in the catacombs?

Hint 1 of 4:

Find the graves of the four most important members of the Trinity Knights.

Hint 2 of 4:

There are 4 rooms containing the crypts of the four major players: Scribe,
Sergeant at Arms, Herald, and Landulph.

Hint 3 of 4:

Each contains runes which Jim must copy into his notebook.

Hint 4 of 4:

Be sure to click on any runes you find.