Heart of Light — Sarah A. Hoyt

Set in a magical Victorian British Empire that never was, this unique fantasy blends adventure, intrigue, and romance, as a newlywed couple embark on a dangerous quest--and, in the process, discover their own heart's desires.

On a luxury magic carpetship in 1889, an English couple travel to Cairo for their honeymoon. Except for a brush with a dragon, the voyage is uneventful. But for Nigel Oldhall and his beautiful Indian-born bride, Emily, the holiday hides another purpose. Within hours of arriving in the teeming city, they are plunged into an extraordinary struggle among demons, murderers, and magic.

In Cairo, Nigel can no longer hide his secret from his wife: he is on a mission to rescue a ruby that will ensure Queen Victoria's hold on Africa forever. But the search has already swallowed up Nigel's older brother--and now it has put his own Emily in mortal danger. But is she the innocent Nigel imagines? Soon, separately and apart, the two will set off for the heart of the continent among conspirators and traitors, all seeking the ruby and the gifts and curses it offers them--and all of humankind....