Wild Penance (Wild Mystery Series #4)

Ault's Wild series is bound to "get your heart racing". (The Charlotte Observer)

Bureau of Land Management agent Jamaica Wild is horrified to see a man, nailed to a cross, plummeting down into the Rio Grande Gorge to his death. Ever since she learned about Los Penitentes, a secret, ancient religious group that reenacts Jesus' crucifixion and practices excessive penance, Jamaica's been putting together a book of her research. But when an attempt is made on her life, her mission could also send her over the edge.