Upon confirming that these brass pieces were indeed the legendary Orichalcum and deducing that this place was very likely the prototype of Atlantis, the Greek people present were the happiest.
Because this relic site belonged entirely to them, and could bring them continuous benefits in the future, the most important thing was that it confirmed the glorious civilization of Ancient Greece.
This last point was very important for Greece, which was in the midst of an economic crisis, as amid a plethora of bad news, this rare good news should help boost morale.
It was at this time that Leonard Ethan chose to end his own excavation activities, as he had already been out for a while now, so he naturally didn't want to continue digging here after obtaining the cards.
Truth be told, archaeology, especially field archaeology, is a difficult and incredibly boring undertaking. So since there are so many capable and willing people to do the job now, Leonard Ethan found no reason to stay.