Nobody's safe

the long version

"During a restoration of Silver Peak's historic opera house, where famous people such as Buffalo Bill and Sarah Bernhardt graced the stage in its boomtown heyday, workers discover an old, ornate pedestal safe that's been sealed in the walls. How long has the safe been there? And why would someone seal it away from sight in the opera house? Sadie can't wait to examine the rare antique and discover what treasures might wait inside. If it is as valuable as Sadie believes it to be, the safe could be sold to subsidize the opera house's restoration. But when threatening notes arrive, warning Sadie to leave the safe unopened, she must race the clock to uncover its secrets before it's too late."--Page 4 of cover.