After clearing Dennis' name, Winnie feels that she has what it takes to be the best detective in Transylvania. However, her newest case could not only ruin her reputation as a detective, but it could also destroy her friendship with Dennis!

The continuation of Immortal Love now finally arrives at 'Wolf of Eternity' the second book of the popular Immortal Love series ---- Difficulties have risen between humans and the monsters now that a deceased woman was discovered on Hotel Transylvania grounds with bite marks and scratches - believed to have been a werewolf attack - which has sparked an in-depth investigation on all werewolves and monsters alike from a human investigation organisation known as the Commission of Counter Monsters. While Winnie and Dennis try to shield their newborn son, Weznor, from the trouble he goes on his own adventures and stumbles upon a deadly truth that will forever change his view on humans and perhaps monsters too.

After the events of Hotel Transylvania 3, it is clear that Winnie and Dennis have a little something special for each other. Their friendship is so powerful that nobody will separate them. Come join them on their adventures together and see them grow to eventually become something more than close friends. This is an adventure full of surprises, filled with emotional and daring moments.