After Abby left those individuals in a helpless state, Minos asked all the questions in his heart, quickly having discovered what those pirates knew.
That indeed was the map the Blood Triangle Pirates were after, an item that was supposedly from over 2 million years ago. Such a thing was assumed to be in one of the ancient ruins of this region, where an ancient organization was formerly based.
However, the map had been lost in time due to numerous expeditions by people from this and other regions. Because of this, after directly searching the area for the map at the first moment, the group hired pirates and regional criminals to do the job for them.
The map could literally be anywhere, even traveling with poor individuals of little power. In this case, criminals and pirates, who usually dealt with robberies and murders of travelers, as well as hiding in the most unbelievable places in the region, were best suited for the job.