Checkmate by Lisa Baillie

Two couples find themselves at war with one another in a tale of forbidden love and bitter revenge.
Erica and Alex are love’s young dream, sharing eight years of wedded bliss. They thought they were untouchable until a secret affair comes to light, shattering the trust they shared. Newlyweds, Sophie and Marcus bask in marital bliss, settling into married life when betrayal knocks at their door.
When Marcus discovers his wife’s infidelity, he ignites a chain of events that neither couple could have predicted. Sending a letter to Erica, the two of them conspire to stage their own affair to drive their spouses crazy. But when pretend flirting blossoms into genuine feelings, things get even more complicated.
With the truth revealed, the stage is set for a showdown. Will Erica and Marcus’ newfound bond be enough to triumph, or will the scars of betrayal mark their fate? Checkmate is a story of the unpredictable journey of love and the resilience of the human heart.
In a world where every kiss is a lie, and every lie a kiss, only one couple will survive the ultimate test of love.