Those 70 pages will be the wrong 70 pages.
I skimmed through it, it was mostly about a sudden pole shift (BS) and mythology (probably some truth to it, who knows. The CIA won't give us the good stuff).
I would hazard a guess that the other ~75% has stuff about how there was a lost ancient civilization that built the pyramids as time capsules of wisdom. This civilization was destroyed by fragments of a giant comet (which could have imitated some of the pole shift symptoms such as tsunamis, climate change, and extreme winds)