From the New York Times–bestselling author of Dune, a novella about a woman who suspects her neighbor is a spy about to reveal  her long concealed past.   Mrs. Ross is an expatriate American who has found a quiet life in the small Mexican village of San Juan, a place where she can be content, a place where no one knows the secrets of her shadowy past life. Until an ambitious American painter takes up residence in San Juan, attempting to depict—and expose—everything about the sleepy Mexican town. But he may have underestimated the lengths a seemingly harmless old woman will go to protect her secrets.   A Thorn in the Bush is one of four previously unpublished short novels written by Hugo and Nebula award winning author Frank Herbert. Early in his career Herbert moved his family to Mexico where he struggled to survive as a writer. Published posthumously, this novel came from those life-changing experiences.