After returning from their field research, Glenn and the others spend their days in different ways. On one such day, Leos visits the academy as a guest instructor, and causes a stir by proclaiming himself Sistine's fiance.
that I would unravel the mystery
of Melgalius's Sky Castle.
.بأن أكشف سرّ قلعة السّماء ميلغاليوس
Dass ich das Rätsel des
fliegenden Schlosses des Melgarius’ löse.
que revelaría el misterio
del Castillo del Cielo de Melgalius.
que revelaría el misterio
del Castillo del Cielo de Melgalius.
de résoudre le mystère
du Château céleste de Mergalius.
che avrei svelato il mistero
 del castello volante di Melgalius.
...que revelaria os mistérios 
do Castelo do Céu de Melgalius.
что раскрою тайны
небесного замка Мелгалиуса.