This two sentence synopsis has held true for 4 books. When I started The Henge Betrayed, I thought there would be one book but when I reached the 75,000 to 80,000 mark I hadn't come close to reaching the end. I am now on the fourth book in the series and it's coming close to 300,000 plus words.
The Two sentence synopsis
Four young teens, each with an affinity for one of the elements (Earth, Water, Air or Fire) are sent by their parents from danger and to find teachers to hone their talents.
Will they find their teachers and gain the skills to defeat the powerful wizard known as He Who Walks With Evil?