If it weren't for Shinobu Oshino's divine intervention, Xia Ya would have spent at least two more days in the water looking for the key, possibly even bothering Luke, only to conclude: the damn key wasn't in the water this time.

Finally, holding incense to repel the sea creatures, he'd search back and forth in the dark passageway, taking at least three days.

In short, luck was truly on their side, for both of them.

"Try using a 'Purification Spell' on it."