The Search For Sam — Rebecca Lovell

Four hundred years ago, Sorcha Dalais Creag and her siblings were put to death on charges of witchcraft but their children survived to carry on the Dalais bloodline and pass on the magical gifts they possessed.
Tilly Dallas and her grandmother Delphine live a quiet life creating herbal medicines and helping neighbors with their gift of Empathy, until Sam Beauvoir goes missing, the latest victim in a string of children's disappearances.
Jacob Pierce, a talented detective tasked with finding the person behind these kidnappings, refuses to give up hope that he will be able to bring the children home alive. To do that, he'll need Tilly's help to convince the families of the missing children to trust him.
Searching for Sam draws Jacob and Tilly closer, but she finds it hard to hide her power from him and harder still to admit her feelings. She'll have to embrace a new power in the wake of tragedy if they want to find Sam and the other missing children before witch hunters succeed in putting an end to the legacy of another member of the Dalais family.