Exciting, funny, heartwarming, and mind-bendingly clever, Time Travelling with a Tortoise is the extraordinary, adventure-packed sequel to Ross Welford's beloved, bestselling debut, Time Travelling with a Hamster. Because when an accident nearly kills Al's beloved Grandpa Byron, and forces Al back in time again, this time he leaves Al Chaudhury travelled back in time to save his father's life. And it worked – Al's dad is alive again and life is back to the way it should be. At least, that's what Al thinks.someone behind, trapped in another dimension forever. And now Al is forced to travel through time once more, not just to rescue his friend from the past, but also to save his Grandpa Byron's life... and to make sure that there will be a future waiting for them all. It turns out time travel isn't as simple as Al thought.