Cosmic Colin: Ticking Time Bomb
Tim Collins, John Bigwood
When Harry discovers that the most evil villain in the galaxy, Galactic Gary, has escaped from prison, it’s not just humankind that is in danger, but time itself.
Galactic Gary is trying to discover the whereabouts of a special time bomb that muddles the days of the week. Wednesday can become Saturday and Sunday can become Tuesday! The parts of the bomb are hidden on three different planets and the boys are in a rapid race to recover them. It’s up to Harry and Colin to save the day (again!) in this action-packed, light-speed adventure.
This title is the fourth instalment in the ‘Cosmic Colin’ series.
Reviews

It was very great and there was a baddy called galactic Gary. He was very bad. He tricked Colin and Harry because he was a imposter. They stuck Galactic Gary in a timeloop because Harry dropped a important bit of the time bomb
Marshal Burp Squirrel 05.08.2022

I enjoyed it, worth a read.
Sir Merlin Chocolate-mousse 10.09.2021

I loved this because instead of Colin and Harry going to one planet they went to 3. The first planet where adults acted like babies, a newborn baby was a grandfather. 42 year old would be a 2 year old. There was also a planet where you can’t lie and the third was a planet where vicious animals were very kind and very kind animals were vicious. At the end, which was my favourite bit. Galactic Gary kept this will be the greatest moment of my life because he got the time bomb recipe wrong and got trapped in a time loop. He even said it in prison.
Sir Sketch Pendragon 27.07.2021

It was funny and I read it really quickly
Sir Portobello Waterfall 02.08.2020

I liked this book because Harry has to find the time bomb. Galactic Gary stole it and hid it everywhere.
Anonymous 30.08.2017

This book was funny because the little children came in and the boy said "get off my treasure!!" and the boy got a laser gun and fired it lit's of times.
Anonymous 09.08.2017