Goblins

Things have been fairly peaceful for David and his companions recently. No new magical creatures had been reported and the magic book was safe and sound in Mel's care. However, this peace wasn't to last. During a visit to a museum, Vance reports seeing a creature. An ugly creature, resembling a fairytale goblin. To everyone's dismay, when Mel uses his transporter device to return the goblin back to its home world, nothing happens. Baffled by his failure, Mel goes back to his house to do some research in order to readjust his transporter device. A further disaster occurs when they track down the alien visitor and Mel retries his augmented device because, although the goblin disappears, everyone else ends up in a heap of trouble. Something truly bizarre has happened and it becomes a matter of survival as David, Carl, Mel, Vance and Simone have to overcome impossible odds. But this isn't the end of their surprises. There's a complete reversal of their preconceptions awaiting them, as they discover the true nature of what it means to be an alien.