My first thought when reading about the lake and tribe was underground activity of some beings being amplified by the lake waters. If I'm not mistaken, the underground tunnels (for slavery escapes from southern states) ran up that far north in that area.

The underground railroad does extend to those areas. I have a theory that the Native Americans marked entrances into the underground with a "Wakanda" intaglio mound, meaning an inverse mound (hole in the ground) in the shape of a water panther. Wakanda is a complex, multifaceted word meaning both God, witchcraft, and water spirit, and the water spirit in their mythology was a panther that guarded the underworld. So I think there are underground entrance points near any place where the natives had once built an intaglio mound.

There is only one such Wakanda intaglio mound left in the world, which is at Fort Atkinson, Wisconsin but there also used to be one in Milwaukee. A cemetery was built on top of that mound where many of the most elite citizens of Wisconsin are now buried.

That site I linked you to above, https://usa-anti-communist.com/ , is mostly focused on a Witch who lived in Kenosha and possessed the stolen crown of Liechtenstein; her house was on the Rock river that flowed from Fort Atkinson (where the only remaining intaglio mound is today). It was very close to a place called Wauconda, Illinois. Rock Lake also has pyramids underneath it.

My first thought when reading about the lake and tribe was underground activity of some beings being amplified by the lake waters. If I'm not mistaken, the underground tunnels (for slavery escapes from southern states) ran up that far north in that area.

The underground railroad does extend to those areas. I have a theory that the Native Americans marked entrances into the underground with a "Wakanda" intaglio mound, meaning an inverse mound (hole in the ground) in the shape of a water panther. Wakanda is a complex, multifaceted word meaning both God, witchcraft, and water spirit, and the water spirit in their mythology was a panther that guarded the underworld. So I think there are underground entrance points near any place where the natives had once built an intaglio mound.

There is only one such Wakanda intaglio mound left in the world, which is at Fort Atkinson, Wisconsin but there also used to be one in Milwaukee. A cemetery was built on top of that mound where many of the most elite citizens of Wisconsin are now buried.

That site I linked you to above, https://usa-anti-communist.com/ , is mostly focused on a Witch who lived in Kenosha and possessed the stolen crown of Liechtenstein; her house was on the river that flowed from Fort Atkinson (where the only remaining intaglio mound is today). It was very close to a place called Wauconda, Illinois.