In “Echoes of Angels,” Professor Rachel Jordan defies angelic doctrine, hunted by those who would brainwash her back into the angels’ good graces. She seeks a fabled lost book to challenge the angels’ rule, drawing the ire of powerful forces. The first book in an epic space opera series, “Echoes of Angels” delivers a conflict that spans galaxies and rests on the spirit of a single brave researcher, reminiscent of Dune and Indiana Jones.