Ren knew that when Natsu took the Galuna Island job in the original story, hardly anyone had found the island strange or been curious about it. Clearly, Galuna Island was well known by then. He had never expected it to still be so mysterious in the year 774, much less to hold a ruin!
In the original story, Natsu had found a temple at the island's center. The Devil Race guarding the island couldn't even approach it. Clearly, it was no ordinary building. It had to hold some special power!
Devils couldn't approach it, but humans could. Yet there had been nothing inside the temple! Lyon had even used the temple to perform Moon Drip and break down the ice imprisoning Deliora!
Between that and Qing Zhi's information, Ren was certain the temple had once held treasures, only for later visitors to plunder them all. In the end, an empty temple had remained, releasing just enough divine power to keep the devils away!
What's more, in the original story, the reward offered by Galuna Island's Devil Race had been a Sagittarius Celestial Spirit key! Sagittarius was one of the twelve golden zodiac spirits. To wizards, a key like that was a precious treasure. Even someone who couldn't use it could sell it to a Celestial Spirit wizard. In their eyes, one of the twelve golden keys was priceless!
Yet a key that valuable had been found by the Devil Race on remote Galuna Island! That was strange. The Devil Race never left the island, so how could they have found it? The key had likely been part of the temple's collection, though Ren didn't know how it had fallen into their hands!
Of course, those were only guesses. Once Ren reached Galuna Island, everything would become clear!
Ren took a