How to build an accidental time machine:

1. Activate your homemade particle accelerator

2. Fail to supervise your pet chameleon

3. Watch in horror as he kicks a quartz rock in front of the particle ray

... and BAM! Let the adventures begin!

Join Felix Frost, secret boy genius, his chameleon Einstein and his classmate Missy as they travel back in time to Ancient Rome, where terrifying danger and embarrassing togas await.

But can they solve the riddle of a mysterious gladiator skeleton without getting themselves skewered in the gladiator arena?

Funny, fast-paced and full of you-won't-believe-it facts, Felix Frost: Time Detective will have readers hooked on history and sold on science!

This is book 1 in Felix Frost, Time Detective .

There are 240 pages in this book. This book was published 2015 by Hachette Children's Group .

Harry Hill is a BAFTA winning comedian. His books include the Matt Millz series and Tim the Tiny Horse. The TV shows he's created and starred in include Harry Hill's TV Burp and Harry Hill's Alien Fun Capsule, while he's also the voice of You've Been Framed. Steve May is an animation director and illustrator. Steve has illustrated books by Jeremy Strong, Philip Reeve and Phil Earle, as well as the Dennis the Menace series. He lives in north London. Sarah Horne trained as an Illustrator at Falmouth College of Arts. She has worked in Illustration for Editorial, Advertising and Children's Books for the past three years. Eleanor Hawken has a degree in Philosophy, and worked as a children's books editor in London and in Bath. She was also part of the team that established the Bath Festival of Children's Literature. She devised the fiction series Will Solvit and has written books under the pseudonym Zed Storm. Eleanor lives in Surrey.