Every summer, the Queen of the Night flower blooms in the Arizona desert— a sacred event commemorated throughout the Tohono O'odham Nation. But this year, one couple's celebration is prematurely destroyed by gunfire . . . and the sole witness to the carnage is a little girl who has lost the only family she's ever known.
Dr. Lani Walker recognizes the trauma of her own childhood reflected in her devastated young patient. Joining Dan Pardee— a member of the unorthodox Shadow Wolves border patrol— Lani vows to keep the child safe while tracking down a ruthless killer. Meanwhile, Lani's adoptive father, retired homicide detective Brandon Walker, sees a break in his investigation of the long unsolved murder of an Arizona State University coed— while his wife, Diana Ladd, relives terrible memories of a man whose death haunts her still.
