Skip to content
Menu Button
Scan a barcode
Scan
My Lists
Menu Button
Scan a barcode
Scan
Sell your books for cash or store credit, and shipping is free!
Try ThriftBooks BuyBack →

Calvert

Follow to get improved recommendations.
Authors: Leighton Harding
The Calvert book series by Leighton Harding includes books When Duty Calls and State Secrets. See the complete Calvert series book list in order, box sets or omnibus editions, and companion titles.
2 Books
#1
When Duty Calls - Book #1 of the Calvert

When Duty Calls

Leighton Harding
From $16.99
#2
State Secrets - Book #2 of the Calvert

State Secrets

Leighton Harding
From $13.20
Trustpilot

Popular Categories

Website

My Account

Partnerships

Quick Help

About Us

ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.

Follow Us

Link to Facebook
Link to Twitter
Link to Pinterest
Link to Tumblr
Link to Instagram
Copyright © 2026 Thriftbooks.com Terms of Use | Privacy Policy | Do Not Sell/Share My Personal Information | Cookie Policy | Cookie Preferences | Accessibility Statement
ThriftBooks® and the ThriftBooks® logo are registered trademarks of Thrift Books Global, LLC
GoDaddy Verified and Secured