Circle's End - Delwyn McPhun - Bog

Crop circles: Hundreds of these strange patterns appear in our fields each year, their vast beauty inspiring awe and wonder.
A sudden increase in their number throws Matt Lancing, maths student and amateur symbologist, into a world of intrigue. What is creating them? What is their message?
Matt deciphers crop circles for a secret military group led by the mysterious Ember, a determined redhead with strange spiritual beliefs. Uncovering what makes the circles is just the beginning of his journey to a terrifying discovery.