Marrying the Musketeer (And One for All #2)
Kate Silver

Pierre's greatest regret is the woman he betrayed - on the direct order of the King himself. The arrival of Courtney's young cousin in the Guard allows him to unleash his painful secrets. But when a dangerous rebellion throws them into the fray together, he learns that his comrade is none other than the lady he betrayed, and he would do anything to prove to her that his heart has always been true.
This book was previously published by Kensington Books under the title The Lady Betrayed.