Joined By The Highlander by Rebecca Preston

When she’s thrust back in time to 16th century Scotland, Ivy must use her future skills to deal with the turmoil in the past while also dealing with her growing feelings for Edward…
Child psychologist Ivy Jones has spent her life working with autistic and neurodivergent children. But when a car accident leaves her waking up near drowning in Loch Ness in ancient Scotland, the last thing she expects is to find herself embroiled in a drama that needs her special skill-set.
Edward Grant has been tasked with investigating an allegation from the visiting Gilroy clan—that the baby of the chieftain has been stolen by local fae and replaced by the changeling. The strange behavior of the child makes it hard for Edward to contest the claims, but when he rescues a woman from the future, he learns her special knowledge may actually help him in his quest.