The girl Shiki met in the library was the same girl that he had seen riding on the back of Sasajima's bike. The book she left behind has a marker stuck to the page on building quiz bowl buzzer systems. Is she involved with quiz bowl? As Shiki is thinking about all his, Mari tells him they're having a joint quiz bowl practice with another school today. That school turns out to be Miyaura High, the team that claims Mikuriya as a member!
The determining point 
is on the third title.
.نقطة التّحديد في العنوان الثّالث
Der entscheidende Punkt
kommt beim dritten Titel.
El punto determinante
es el tercer título. Fue un error.
El punto determinante
es el tercer título. Ha sido un error.
Il fallait attendre le 3e
pour le point de bascule !
Il punto decisivo
dovrebbe essere il terzo titolo.
O ponto chave seria o terceiro título.
Определяющий момент — третье название.