I ran across Sven's Journal in which he describes Inga's behavior on a particularly bad day as "irrational". He did say why he thought her behavior was beyond the norm but his description was not politically correct. That didn't stop him from putting a riddle together to poke a bit of fun at his beautiful bride. I checked the location his riddle indicated but alas the St Louis River has moved in the last hundred years. Of course I may have made a mistake, perhaps someone can help me find my mistake and locate the treasure that Sven left for Inga.

     Here is the riddle I found in Sven's Journal.

N 49,725,580

W 190,810,597