Read the excerpt from a summary of "Under the Raven's Wing.”
Finding and sharing the treasure led to prosperity for both Barton and Elizabeth. Barton was able to buy his land. And Elizabeth was able to pay for college.
The word prosperity most likely means
good fortune.
good times.
great fame.
great popularity.
In the context of the excerpt, prosperity is being used to describe great (monetary) success by stating that Barton was able to buy land and Elizabeth was able to pay for her schooling. Hope I helped!