A collection of valuable things; accumulated wealth; a stock of money, jewels, etc.
It seems there was a worm that slept upon a pile of treasure, which it had zealously heaped up under a stone bluff.
"Now," resumed Silver, "here it is. You give us the chart to get the treasure by, and drop shooting poor seamen and stoving of their heads in while asleep. You do that, and we'll offer you a choice. Either you come aboard along of us, once the treasure shipped, and then I'll give you my affy-davy, upon my word of honour, to clap you somewhere safe ashore.