As Donna Fletcher's series about four Highland brothers - Cavan, Artair, Lachlan and Ronan - continues, the search for the missing Ronan continues as a theme. Most of the focus here is on Lachlan, who is sent to bring back wayward Alyce Bunnock from a nunnery. When Lachlan arrives at Everagis Abbey, he discovers there are only five of them left; the others - including Alyce Bunnock - having died.

Lachlan and his men decide they must stay to protect the nuns from mercenaries while they send a message to the church authorities to ask what to do with the few women left. Unfortunately for Lachlan, the more time he spends with Sister Terese, the more he sees her in a rather un-nun-like manner.

Terese is hiding quite a lot from Lachlan and his men - firstly, that the five women aren't nuns after all; secondly that her identity as Alyce Bunnock needs to be hidden or she will be forced home to wed the man her father requires; and thirdly that she has struck a bargain with the mercenaries, despite not seeing their mysterious leader. But as Lachlan and Terese/Alyce fall in love, he has to learn to trust her and give her freedom, and she has to discover whether she can leave Everagis to be with Lachlan.

The Angel and the Highlander flows well and is easy to read. However, the central 'difficulty' of the plot - the fact that Alyce fears Lachlan won't like her when he discovers that she is the shrewish Alyce - very unlikely. In fact, the second half of the book feels more and more unrealistic at times. Alyce's father's behavior seems erratic, too - treating her like a son, then treating her badly - although it appears necessary for the plot to show how she attained  her leadership skills yet also why she ran away.

This is an okay read, similar to the previous two in feel, but it lacks that certain something that would elevate it to a really good read.