The president of the Detective Agency is arrested, and Kunikida is missing after having blown himself up with a grenade. Meanwhile, Atsushi and Kyouka are on the run, looking for a way to defeat the true mastermind: Fyodor.
He must have left his blood behind 
when the fountain pen hit it.
.لا بدّ أنّه وضع دمه في قلم الحبر الّذي استخدمه
Le stylo qu’il a utilisé
était imbibé de son sang !
Deve aver lasciato il suo sangue
quando la penna stilografica l'ha colpito.
Ele deixou sangue pra trás quando
a caneta-tinteiro o atingiu.
Он оставил на ручке кровь,
когда та проткнула его руку!