Treasured Hopes by Kendall Talbot

Tracking secrets from a deadly past, leads to a lethal double cross nobody saw coming.
Treasure hunter, Archer Mahoney, thrives on danger, but with his first child on the way, everything has changed. His fiancé’s happiness hinges on finding her grandmother’s priceless painting that was stolen by the Nazi’s during WWII.
With his focus split between keeping Rosalina’s inquisitive nature at bay, and delving into a dark past that people will kill to keep buried, they head to Brazil’s seedy underground.
Armed with a yellowing letter dated during the war, Rosalina and Archer are thrust into a treasure hunt that scrapes the underbelly of human nature.
But Archer finds out the hard way that there’s always a price to pay. With danger lurking on every corner, they become trapped in a double-cross none of them saw coming.