The second PHENOMENALLY FUNNY fantasy adventure from YouTube sensation and TV presenter Adam B is perfect for fans of David Baddiel and Ben MIller!

Thirteen-year-old Adam has made a lot of mistakes in his life, but this has to be the biggest.

Thanks to a MASSIVE fight with his little brother Callum, the mysterious and magical computer algorithm Popularis Incrementum has exploded - and accidentally transported them both to a completely different world!

No, not just a different world. A different dimension: one where Adam and Callum were never born and the internet doesn't exist, and neither does any of the technology they know and love and rely on to make their epic YouTube videos!

Will the brothers survive in this strange Altiverse where everything is ALMOST like home but ISN'T? How do you explain suddenly appearing out of thin air to hundreds of confused and screaming office workers? How do you make a call for help on a mobile phone with a rotary dial that has to be plugged into a public phone box to charge? And how do you stop an evil villain from sabotaging your dad's world-changing technology when in this universe your dad doesn't even know who you are?

But for now there's only one question in Adam's mind: how do they get back home??