Annika left her hidden all-women community to find her missing sister. After years of searching whilst working as an airship engineer, she encounters David, a scientist who is looking for the hidden community in order to properly bury his mother's runes. Can they overcome pirates, social prejudices, mad scientists, evil plots, mysterious disasters, volcanic eruptions, and their own lack of flirting skills to find true love? And stop Iceland from getting blown up?
In an objective sense this is probably the best of the series, especially in terms of character development and believability. But I missed the episodic swashbuckling action of the previous book.