Book Your Summer Shop NowBook Your Summer Shop Now
Add Item to wish listAdd Item to wish list
Read sample

The Unknown Quantity

By Mignon G. Eberhart
eBook
$8.99
By Mignon G. Eberhart
Membership Card Icon

Collect stamps to save with Rewards. 10 stamps = $5. Learn More

Formats
Select a store to view item availability.

Available on compatible , the free NOOK App, and in My Digital Library

NOOK App

Download NOOK app

NOOK Devices

NOOK eReaders

  • NOOK GlowLight 4 Plus
  • NOOK GlowLight 4e
  • NOOK GlowLight 4
  • NOOK GlowLight Plus 7.8"
  • NOOK GlowLight 3
  • NOOK GlowLight Plus 6"

NOOK Tablets

  • NOOK 8.7" Reading Tablet
  • NOOK 9" Lenovo Tablet
  • NOOK 10" HD Lenovo Tablet
  • NOOK Tablet 7" & 10.1"
  • NOOK by Samsung Galaxy Tab 7.0 [Tab A and Tab 4]
  • NOOK by Samsung [Tab 4 10.1, S2 & E]

Free NOOK Reading Apps

  • NOOK for iOS
  • NOOK for Android

BN.com website

Go to your Digital Library in My Account

From a Grand Master Award–winning author, a wife is drawn into her husband's business world of secrets and lies—and murder—in this thrilling mystery.

Sarah Travers's husband Arthur asked her to meet him in San Francisco, where he's engaged in business related to his oil company, and is shocked to meet his newest employee. Lawyer Jake Dixon looks almost exactly like her husband. Arthur has been contracted by the government for covert work and hired Jake to impersonate him during his absence....