Stuart Field 
The Old Buna Mansion [EPUB ebook] 

In a crumbling American city, six thieves stumble upon the score of a lifetime.

The Old Buna Mansion is rumored to be filled with treasures beyond their wildest dreams. All they have to do is break in, grab the goods, and get out. Easy.

But inside, they face a choice: take what they can from the rooms above, or venture into the catacombs in search of a prize beyond imagination.

As they descend, each room will test them in ways they never expected. As bonds fracture and trust erodes, will the mansion claim its due?