The Spy Beneath the Mistletoe by Shana Galen

When weapons designer Eliza Qwillen (Q) is sent to the English countryside with Pierce Moneypence, clerk to the mysterious M, she’s worried the memory of their steamy encounter will interfere with the task at hand.
The operatives are intent upon capturing the highwayman styling himself as the New Sheriff of Nottingham. But with the Sheriff in their sights, secret rendezvous, mistaken identities, and cat-and-mouse games challenge these fledgling agents—and Q and Pierce will learn that rediscovering their passion for each other is the most rewarding mission of all.

***This novella was previously featured in the anthology Christmas in The Duke’s Arms***