Life in Itlantis has turned out differently from how Aemi first imagined it, with her discovering that she is the heir to the Graywater family and a member of Itlantis high society. However, being one of the elite is not as easy as she would have believed, with Itlantis high society being fraught with rumours and accusations, multiple assassination attempts and she discovers that her father was executed for treason. Desperate for answers Aemi and her friends set off to Arctus, the ice city, but they discover more than they expected.
By Sun and Saltwater is a really good sequel to Of Sea and Stone. It has plenty of twists and secrets, and it is fast paced and has action, mystery and romance.
I really like Aemi in this book as she has so much to deal with yet she is still strong and kind. There are lots of returning characters including Lyssia and Merclus and another character who I am glad reappears in this book. My favourite new character is Tallyn as he is not all he seems and really cared for Aemi.
This book is just as good as the last book and I am looking forward to the next book With Tide and Tempest. I would recommend By Sun and Saltwater to fans of the first book in the Secrets of Itlantis series Of Sea and Stone.