Dag around for a while where X marked the spot, but didn't find anything as far as I can tell. There was a point though where the dirt dug up made clanking sound, but then I ran out of them. As far as I can see nothing is broken, though once fell down the island, there is no way back but to reset.
Hi! Thanks for trying out the build! Actually finding the treasures ends up being too tedious alone right now as there can be too much surface area to cover. I'll have to figure something out!
The "clanking sound" you heard means that you were only a couple of blocks away from finding your first treasure.
Again, thanks for taking your time to try it out.