UNSAFE TERRITORY 
When a mysterious toxin threatens lives and livelihoods near the border between the U.S. and Canada, Dr. Tessa Cleary is called to trace the source. But when the no-nonsense doctor is forced to work with border patrol agent Jeff Steele, she finds the lone wolf's dedication to his job—and country—chipping away at the walls around her heart. Just as Tessa and Jeff are about to uncover the toxin's deadly source, armed thugs kidnap them in the forest. Now they must trust each other to survive before time runs out for everyone. 
Northern Border Patrol: Keeping the U.S.–Canadian border safe
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Seller: ThriftBooks-Phoenix, Phoenix, AZ, U.S.A.
Unknown. Condition: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G0373676298I4N00
Seller: Goodwill, Brooklyn Park, MN, U.S.A.
Condition: good. Cover Case has some rubbing and edgewear. Access codes, CD's, slipcovers and other accessories may not be included. Seller Inventory # 2Y6Z1H000KCT_ns
Seller: ThriftBooks-Dallas, Dallas, TX, U.S.A.
Unknown. Condition: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G0373676298I4N00
Seller: Better World Books, Mishawaka, IN, U.S.A.
Condition: Good. Large Print. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good. Seller Inventory # 39500132-75
Seller: GoldBooks, Denver, CO, U.S.A.
Paperback. Condition: fair. Acceptable Copy. Customer Service Guaranteed. Seller Inventory # 5J3_13_0373676298
Seller: Colorado's Used Book Store, Englewood, CO, U.S.A.
Mass Market Paperback. Condition: Good. Light edge and cover wear. Unmarked pages. All Orders Shipped With Tracking And Delivery Confirmation Numbers. Seller Inventory # 391808
Seller: Vada's Book Store, Benton Harbor, MI, U.S.A.
Mass Market Paperback. Condition: Good. Large Print markings on first page some shelf wear spine good binding good readers crease. Seller Inventory # 2309290027
Seller: MERS Goodwill, Saint Louis, MO, U.S.A.
Condition: acceptable. Used - Acceptable: All pages and the cover are intact, but shrink wrap, dust covers, or boxed set case may be missing. Pages may include limited notes, highlighting, or minor water damage but the text is readable. Pages may include limited notes and highlighting, but the text cannot be obscured or unreadable. Any access codes or passwords originally included with the book may be expired, used or no longer valid. Image is stock photo and cover art edition may be different than pictured. Seller Inventory # 4J3P7J003J44