Forensic scientist Ava O'Malley is in the middle of a criminal trial when a mysterious box arrives from Center, Colorado. Inside the box are the boney remains of at least three young children. Ava and her team must throw their usual controlled process to the wind to track down who these bones belong to.

Ava's investigation leads her to encounter an ancient evil creature known only in Indigenous myth. As Ava gets closer to the truth, she finds herself in danger, but she is determined to bring justice to the families of the murdered children.

Speak Low is a suspenseful mystery set in the wilds of rural Colorado while taking a fascinating look at an Indigenous myth.