Revenge by Ann Lexi Cole

After battling terrorists in Relentless, Maggie and Ethan are finally ready for the epic wedding and honeymoon they deserve. Lazy days on the beach and long afternoons of making love are all they ever wanted. There is only one problem, little do they know their honeymoon bliss is about to turn into the honeymoon from hell.
At last Maggie and Ethan have a break in the action long enough to enjoy their destination wedding in Hawaii.
Of course, Ethan has an epic honeymoon planned, nothing but the best for his bride-to-be. As an ex-CIA agent and world travel lover would do, Ethan has chartered a superyacht to travel around the world in newlywed euphoria.
But how long can Maggie and Ethan’s romantic adventure of island hopping and making love on the beach last before they find themselves in trouble again?
Soon they find themselves being targeted by an evil cult called the Divine after Ethan puts a stop to the cult’s nefarious business dealings.
What lengths will Maggie and Ethan have to go to keep their love and themselves alive?