Toxo (Medical Kidnap Files Book 4) by P.D. Workman: Gabriel and Renata are fighting back against medical kidnap. Victims themselves, they are determined to help other kids and families. Caleb, deaf and autistic, is wrongly arrested and then torn from his family for abuse, placing him in harm’s way. Gabriel and Renata are in a race against time to rescue Caleb before it is too late.