Revenant by Michelle St. James

Charlotte Duval had given everything. Just like her mother.

After the whirlwind romance that brought her together with the brooding and enigmatic Christophe Marchand, Charlotte is trying to regain her equilibrium by continuing their search for the stolen cross that is legend in the art world. Settled on the coast of Spain to continue the quest, she’s prepared for everything – except the man who haunts her dreams.
There was no fighting it – Charlotte Duval was in his blood.

Nothing had changed. Christophe Marchand’s business was still under attack, and his life offered no safe haven for a woman like Charlotte. But none of that changed the way his heart beat for her.
Indulging his curiosity about the final clue to the cross, he flies to Spain only to realize he’s been beaten to the chase — by the one woman he can’t forget. But when they join forces to reclaim the cross from an exclusive art sale, they realize the threat against Christophe is a threat again everything.

And everyone — including Nico Vitale, Farrell Black, and Luca Cassano, brothers-in-arms in the organization once ruled by the Syndicate.
Now Christophe and Charlotte are in a race to recover the cross, outrun their enemies, and salvage the one love they can’t forget. There’s only one question — will they live long enough to do it?