The third title in the brilliantly funny new series from the author of My Sister the Vampire

It's Halloween , but twins Daniel and Justin aren't about to be spooked by ghosts and pumpkins – after all, one of them is a werewolf!

But there's still plenty to be scared about – like knowing when to hold your new girlfriend's hand, and having to swap identities to keep your biggest family secret safe.

Trick-or-treating has never been so confusing!

Sink your teeth into Justin and Daniel's third wild adventure!