This story, The Final Summons, a sequel to A Summons, where Sara Harper continues to acquaint the masses of characters throughout the Cosmos the reality of what and why she was specifically summoned. Only this time there are ongoing dangerous and personal engagements of Sara and her followers, against the formidable and continuous forces of evil. The stakes are real and have turned to life or death determinations. Millions upon millions of Harpers' followers struggle constantly with those evil forces in a perpetual tug-of-war for each of their own souls. Sara's "final summons" to break those struggles and block the evil forces' intentions.
As her labors continue an elite group of individuals labor to find the ultimate defense to use against an evil force that is constantly probing, changing, and searching for their next convert, or victim. There is, however, a useable weapon, a solution, that is undeniably simple, as well as obvious, which makes it most difficult to find and employ. This unique defense is so close at hand, but its late discovery will nearly cost the life of their champion.