A possible embezzlement case occupies inquiry agent Bay Tanner in Wall's suspenseful 10th puzzler set in South Carolina's Lowcountry (after 2009's Covenant Hall
). Cecelia Dobbs, a low-level employee at First Coast Bank of the Carolinas, consults Bay because she suspects caregiver Kendra Blaine has swindled elderly Thomas and Rebecca Castlemain of Canaan's Gate, a wealthy Hilton Head island community, out of $1 million with the connivance of another First Coast employee. After Rebecca suddenly dies of a heart attack, the Castlemains' “movie-star handsome” grandson, Nick Potter, retains Bay's services. Nick suspects Kendra lent Rebecca a helping hand into her grave. The plot thickens alarmingly after Cecelia goes missing. Meanwhile, Bay and her restless new husband, Red, debate their working relationship at Simpson & Tanner, Inquiry Agents. Some stormy surprises lead to a cliffhanger ending. (May)