Mentore,
I payed this historian you mentioned a visit. I attempted to persuade him to abandon his project in a more civilized manor, but he wouldn't budge. After a little while of verbal arguments, I decided to beat the man up until he surrendered, which he ended up doing.
In conclusion, the man stated he'd give up his corrupted life and relinquished any and all documents he'd been working on in the time of his corruption. I left them with this report. I hope this will suffice.