Answer:
They can be compared to treasure hunters as they collected stories that had been passed down from generations to generations.
Explanation:
Grim brothers are the most famous German folklore, who wrote many famous folktales such as Snow White, Rapunzel, etc.
Full name of the Grim Btothers are Jacob Ludwig Carl Grimm and Wilhelm Carl Grimm. They also were fablers, editors, and fairy tale collectors.
In the given passage, the Grim Brothers have been comparred to treasure hunters because they collected fairy tales that's been passed down from generation to generation.
Even the famous fairy tales such as Snow White, Rapunzel, were not their own creation rather it was a folktale that's been passed down for generations and they collected and compiled and published them.
Thus, in this way they can be compared to treasure hunters, as they collected the treasures of fairy tales and folktales that's been there for generations.