The Black Devil’s Cave by J. C. Pater
A child with unique ability. A mystery older than human civilization. A dangerous secret.
When undocumented children in ICE detention center become sick from food poisoning, one little boy seems immune.
But nobody knows who he is or where he came from, and the boy isn't talking. A pharmaceutical company turns the child into a lab animal to crack the puzzle of his immunity and turn it into profit.
The mystery deepens when the boy reads from a book that can’t be decoded for hundreds of years. Dr. Jenny Williams and her friend, Dr. Sonia Ruiz are determined to save the boy and travel to one of the most remote parts of the world to return him to his parents.
They try to stay one step ahead of the thugs sent by the pharmaceutical company that wants the child back.