In search of Hanako's secrets, Nene and Kou enter the fifth Wonder, the 4 O'clock Library. It's books contain the past and future of every student their school has ever had, but some knowledge comes at a price.
Spook 6: 
The 4pm Bookstacks
Erscheinung 6
Aparición seis:
La biblioteca de las 4 PM
Misterio N.º 6
La biblioteca de las
cuatro de la tarde
6E ESPRIT
FANTASMA SEIS:
BIBLIOTECA DAS 4 HORAS