At the site:
Marion POV
We're here! (At the site, I mean) I can't wait until we find out what I have to do with that stupid prophecy! Why did it have to be me? The whole English royalty is on mom's side anyway, so why "the youngest of Raven and of Wood" and not the youngest granddaughter of this one guy? It would still point to me. It wouldn't be Mutt since technically Ravenwood isn't his last name. Ah, well, I wonder what Jones is up to.
Indy POV
We're here. Oh, great, that means I have to work with her. Her cousin Lee is funny, but I still don't trust the guy. This reminds me all too well of the trips we took with Abner. I think Marion still hates his guts: he treated her like a six year old. He was constantly ordering her around, and I know she wanted to run away to her aunt and uncle's house a few states West. How many times removed is this cousin anyway? I mean, is he the great grandson of the Orkney clan or is he a ful blooded cousin on one side?
Lee POV:
Okay, just a bit farther. We're discovering family history here. True, it's my great something aunt's, but still. We need it for the museum, and this girl is the key to unlocking the past. If the throne had gone to Morgan, this would be all mine, but no, it had to go to her little half brother Arthur and only one of his descendants can get the journal.
No POV
Lee led them into the tunnel. Marion cautiously followed as Indy took up the caboose. Torches burned in their brackets as the outlines of castle ruins came into view.
"This was the castle of Camelot before Malagant destroyed it." Lee said, "when it was being rebuilt, Guinevere disappeared leaving the diary as a clue and a prophecy about who could unlock the mystery."
"Hey, I've hit something!" One of the diggers said.
"Let me see!" Marion said, blowing the dust off of the book. The Word Guinevere showed on the worn leather cover.
A.N. Thanks to SunflowerSeedsInYourPockets for the cousin's name suggestion.