Vampires Are Forever is another episode in Lynsay Sands' Argeneau vampire series, with Thomas Argeneau as the hero. Thomas is one of the younger Argeneau Immortals, and he thinks that the others see him as rather an aimless kid, despite his being 200 years old. When the family release that Thomas's aunt Marguerite has gone missing, he is the only one able to drop everything and go to London, where she was last seen, to pick up her trail. Bastien, Thomas's cousin, arranges for one of his UK employees, Inez Urso, to help with the search.

Thomas realizes as soon as he meets Inez that she is his lifemate. However, their mission to find Marguerite means that he can't concentrate just on her but has to follow any leads for his missing Aunt. They travel to Amsterdam and then to York in England on the trail of Marguerite. Unfortunately, someone else seems to be trying to stop them and is occasionally taking control of Inez and wiping her memories. Can they find Marguerite? Can Inez be kept safe? And how will she take the news that Thomas is a vampire and her destined lifemate?

The Argeneau series is generally good fun and written in a lively way with reasonable pacing. This book, however, was a disappointment to this reader. Firstly, the overall sub-plot, that of the search for Marguerite, isn't resolved; not only that, the identity of the baddie or baddies isn't revealed, so the book doesn't feel completed. Most of the action seems to be various Argeneaus phoning each other up to talk, or Thomas and Inez sitting at a café in various cities. The descriptions of Amsterdam are good, but the lack of meatiness in the plot means that this book isn't very satisfying. Fans of the series will enjoy it, but it isn't one of the better offerings in this series.