Athens Affair by Elle James

Former Navy SEAL Ace “Hammer” Hammerson, on security detail in Jordan, corners a thief, who is vaguely familiar, absconding with portions of an ancient copper scroll. When the thief is attacked and the scroll is stolen, Ace is drawn into a dangerous quest to retrieve the priceless antiquity.
Former Israeli Sayeret Matkal, Jasmine Nassar, is forced to steal an ancient copper scroll from a museum in Amman Jordan to save her son’s life. After she successful retrieves the scroll from the museum, she’s knocked out by two men. They take the scrolls, leaving her without the bargaining chip she needs to save her son. She has forty-eight hours to retrieve the scroll, or her son will be killed.
When Ace finds the semi-conscious thief and learns of her dilemma, he joins her in a mad dash across the Mediterranean to Athens, following a trail of intrigue that leads to danger and rekindled love that wasn’t in his original Brotherhood Protectors mission statement.