North, South, East, West, and Central

The other teams also faced the same challenges that Lin Sanjiu's team faced. It was simply a fantasy to think that they could find five books among close to four million books just by pure manpower. Under such circumstance, the different teams developed different strategies.

Obviously, the people who arrived didn't simply want to "check if the required books were in the central hall".

"If that's the case, what is their strategy? At this point, it was impossible that anyone has already found a book. Why are they so eager to take action?"