"A Visitor From The Aretha Family"
The old members happily welcomed the new members and were even excited when they knew that they might have non-human races as their allies in the future.
Those non-human races would live on this island, just like what happened at the Port Island!
They really didn't think that more alliance members meant less benefit for them.
Ainsley herself already swore that the amount of inheritance stones yet to be mined was so abundant that the price would drop severely if they didn't keep this a secret.
Thus, the alliance members only told others that the mine held very few stones and they would only sell the stones occasionally.
Indeed, Ainsley limited the amount of stones the members could sell to maintain the price of the inheritance stone.
This way, they also didn't need to dig out so many inheritance stones each month and could focus on the island's development, exploration, and safety.