The Many Worlds Of Albie Bright Av Christopher Edge

When Albie's mum dies, it's natural he should wonder where she's gone. His parents are both scientists and they usually have all the answers. Dad mutters something about Albie's mum being alive and with them in a parallel universe. So Albie finds a box, his mum's computer and a rotting banana, and sends himself through time and space to find her...