Diablo, Shera, and Rem head out to the plains to test out new magic. While using said Flight Magic, Diablo spots the light of magic energy rising up from deep within the forest, so he makes haste towards its source. However, his spell gives out half way, and he goes plummeting down!

When he lands, he finds the Head Priest, Lumachina under attack from the Paladin, Gewalt.
If I recall, that's where 
my dungeon's located, too.
Si recuerdo bien, mi mazmorra…
Si recuerdo bien, mi mazmorra…
Je crois que mon donjon
n’est pas loin.
Se non ricordo male, il mio dungeon si trovava lì...
Se não me engano,
é onde está minha masmorra.
Если не ошибаюсь, моё подземелье рядом…