The Lord Keepers Book 2 Second Edition 2015

The Devils from the Black are a marauding race of brutal warriors. They are encouraged by Battle Priests, and led by fanatical clan leaders. They have interstellar ships, but that is the end of their technology. They wage war from horseback, wearing medieval armour, their faces covered in skull masks, their weapons, sword, lance and long bow. The prize they seek on Ollor, Children, but why?
Grace Turnbull’s effort to help the children of Ollor results in her capture and torture. Diego de Silva mounts a rescue, will he succeed, or will his high crusade come to a devastating end?