Book Burner
Destroy the world-saving tome within one and a half minutes.

This battle occurs shortly after Soul Crusher and is easily the biggest joke of the timed trophies. Skip all cutscenes, don't worry if you somehow miss the trophy in your first playthrough, it will be much easier in New Game+

Hit the book with fully charged Dark Hand or Dark Lance, after a few hits the book will be defeated and the trophy will unlock.