Tregarthur's Crystal (Book 4)

by Alex Mellanby


Trapped in the wrong time, Alvin and Jenna’s only hope lies with Miss Tregarthur’s crystal. But can they follow her in an age of horses and steam trains? Even if they do find her, the crystal is failing and the answers may not be close to home.

As they start to uncover the full horror of Miss Tregarthur’s mind they realise how far she will go to control time. Will Alvin escape the future she has planned?

The storm broke. The wind screamed into a gale again hurling itself across the moor, whipping up mud and stones in its path, hail burst out of the storm clouds.

‘Nothing happens without the crystal.’

The Tregarthur's Series, was inspired by the Ten Tors Challenge, a two day annual event organised by the Army, for 2,400 teenagers to visit ten tors across Dartmoor, UK. A modern day Lord of the Flies, the books follow a group of teenagers who find themselves cut off from the adult world in an unfamiliar environment. It deals with themes pertinent to the lives of young adults, such as bullying, leadership, grief, and friendship, whilst at the same time having a page turning story line full of adventure and mystery.


Tregarthur’s Crystal is the forth instalment and penultimate in the Tregarthur’s Series.


  • Name: Tregarthur's Crystal
  • Author: Alex Mellanby
  • Publisher: Cillian Press
  • Pub Date: Jul 2017
  • Paperback: 978-1-909776-20-3
  • eBook: 978-1-909776-21-0
  • Available from most online retailers & at selected bookstores
  • Series Info Sheet (PDF)
Buy Now

Alex Mellanby - Author of the Tregathur's Series

About the Author:  Alex Mellanby

This is Alex Mellanby’s fourth novel in the Tregarthur Series. His writing has finally driven him over the edge of sense and he now exists in a shadowy realm of fiction. Whether he can save Alvin and Jenna remains uncertain and the future is much worse than the past.

Join in on the conversation at facebook.com/tregarthurseries or visit tregarthurseries.com

Official Website: http://www.tregarthurseries.com

Facebook: https://www.facebook.com/tregarthurseries


Name: Tregarthur's Crystal
Author: Alex Mellanby
Publisher: Cillian Press
Pub Date: July 2017

Paperback ISBN: 978-1-909776-20-3
eBook ISBN: 978-1-909776-21-0

Available from most online retailers & at selected bookstores