To the people who were stuck with me while I tried to get Evolution written, I owe the biggest thank you. I couldn’t have done this without my husband Dean, who helped me with the science, the plot, the puns, and a million other daily things. I am so lucky to have five beautiful children who are all smart, funny, and kind people in their different ways. Stanley, Teddy, Mia, Helena, and Luis: you inspire me every day. Never change.

Crater Lake introduced me to more new readers than I ever thought I’d have, and I’ve been moved to tears by some of the reviews, messages and Crater Lake inspired creations that I’ve seen and received. So to every reader who has gasped, jumped or laughed along with Lance, Kat, Chets, Mak, and Ade: I hope this second instalment is everything you wanted it to be. Thank you for reading, and I hope you don’t have nightmares.

About the Author

Jennifer Killick lives in Uxbridge in a house full of animals and children. She is the author of five epic MG titles with Firefly, including the much-loved Alex Sparrow series. Her books have been selected for The Reading Agency’s Summer Reading Challenge for four years in a row. The first book in this series, Crater Lake, was a Times Children’s Book of the Week and was selected for the Book Trust Book Buzz programme in 2020. Jennifer loves to visit schools and talk about her books, whether on zoom on in person.

Other books by Jennifer Killick

Alex Sparrow and the Really Big Stink
Alex Sparrow and the Furry Fury
Alex Sparrow and the Zumbie Apocalypse

Mo, Lottie and the Junkers

Crater Lake

Copyright

First published in 2021
by Firefly Press
25 Gabalfa Road, Llandaff North, Cardiff, CF14 2JJ
www.fireflypress.co.uk

© Jennifer Killick 2021

The author asserts her moral right to be identified as author in
accordance with the Copyright, Designs and Patent Act, 1988.

All rights reserved.
This book is sold subject to the condition that it shall not, by way of trade or otherwise, be lent, re-sold, hired out or otherwise circulated without the publisher’s prior consent in any form, binding or cover other than that in which it is published and without a similar condition including this condition being imposed on the subsequent purchaser.

All characters in this publication are fictitious and any resemblance to real persons, living or dead, is purely coincidental.

A CIP catalogue record of this book is available from the British Library.

Print ISBN 978–1–913102–64–7
Ebook ISBN 978–1–913102–65–4

This book has been published with the support of the Books Council of Wales.

Typeset by: Elaine Sharples

Printed by CPI Group (UK) Ltd, Croydon, Surrey, CRO 4YY