The rescue party reaches the heart of the Teleporter Labyrinth and confronts its guardian. But when the monster shrugs off Rudeus's magic, they realize they may have bitten off more than they can chew.
I've heard that hydra heads don't 
regrow if you sear the neck with fire.
‫سمعت أن رؤوس الهيدرا لا تنمو
‫من جديد إن حرقت العنق بالنار.
Ouvi dizer que as cabeças de hidra não voltam
a crescer se queimar o pescoço com fogo.
Я слышал, что можно прижечь шею,
и тогда гидра не отрастит голову обратно!