Shouta suddenly begins shutting himself up in his room. He's pouring over a complicated grimoire in order to create a magic item as a gift for Father's Day. Lucoa offers to help him since the task is so difficult, but he refuses and declares he must accomplish it by himself. However, he continues to fail to produce it...
I found it was written in what we call 
the Dead Sea, which is below sea level.
وجدتُها مكتوبة فيما نطلق عليه بالبحر
الميّت، والذي هو دون مستوى البحر
Y lo hizo en el mar Muerto,
que está bajo el nivel del mar.
Y lo hizo en el mar Muerto,
que está bajo el nivel del mar.
située sous le niveau de la mer,
comme la mer Morte, par exemple.
Così ho scoperto che si trovava in quello che oggi 
chiamiamo Mar Morto, che è sotto il livello del mare.
descobri que ele foi escrito no Mar
Morto, que fica abaixo do nível do mar.
Он это делал ниже уровня моря!
В местечке вроде местного Мёртвого моря!