One beat of a butterfly's wings is all it takes to set in motion a chain of events, over the course of one day, which will change people's lives - and end people's lives.

From the father and son diving in Hawaii to the teenagers surfing the bullet train...from the kidnapped girl in Rio to a bear attack in Japan...the chaos knows no bounds.

Butterfly effect: The scientific theory that a single occurence, no matter how small, can change the course of the universe forever.

A father and son diving off the coast of Hawaii, with the sharks closing in. A scientist in a forest under attack from a savage bear. A young girl who has been kidnapped by drug dealers in Rio. The teenagers surfing on top of a speeding bullet train.

For them, and many others, things will never be the same again.

Some will live. Many will die. All are connected.

The action is non-stop in this tense and compelling adventure.

Praise for Mortal Chaos:

'action-packed crackers kids will fly through'

'Thrilling and thoughtful stuff for a 21st-century reader.'

'A pacy and thrilling read building to a dramatic finale. An imaginative page turner'