He could not shake the feeling that something was off.
It was not because he had obtained it too easily, but because those martial arts gave him a weird feeling. There had not been a sense of exquisiteness nor grandeur to them. An inexplicably strange aura clung about them instead. It was quite baffling.
He had great confidence in his senses. His intuition was far keener than ordinary people because of the Omniscient Mirror.
He was not in a hurry to cultivate this secret manual. He remained staring at it, hoping to find out what it really was.
He could see every inch of the small book down to its very fiber with the Omniscient Mirror.
He could discern the real from the fake. This book had truly been around for a long time. It had not been tainted by others, and it was not forged.
After a while, he reached the conclusion that this book had hundreds of years' worth of history.