138 The Book Of The World

Di Jiu improved from initially escaping four meters at a time to nearly 100 meters in just three days.

He was still trying to practise the escape technique, even though his speed had been slowed down because of his condensed mental strength. Even if he only progressed by one centimeter a day, Di Jiu would still practise without hesitation, as this concerned his ability to survive.

After three days in the Sky Screen, Di Jiu came across some precious spirit herbs and ores. Apart from taking the time to collect a fourth-level Black Gold Jade, he had not collected any other things. Instead, he had spent all his time studying the mental strength escape technique.

On his seventh day there, Di Jiu stopped. His mental strength escape technique could already reach 150 meters.

The reason he stopped was because he had seen a huge book.

Di Jiu had never seen such a big book before. The book, which was half-open on the ground, looked magnificent.