From the files of Prof. Crimson Tome at Maneskatonic University:

It is with great trepidation that I take up my quill once more to add a new, and final, entry in a journal that I have not touched for longer than I care to remember. Yet now, in the twilight of my years, I feel compelled to explain – if only to some unknown reader – the reason for why I have never taken a student as my protégé save for one young stallion whom I retained many years ago. Perhaps I also feel the need to unburden myself of the terrible knowledge that I have steadfastly kept from all those around me. Perhaps, after I have written as much as my aged hoof can bear, my nights will no longer be haunted by visions of that unfathomable terror stalking the dark reaches of the Everfree.