The landmark new novel from Ross Welford, one of the fastest-growing and most critically acclaimed middle grade authors in the UK, this funny, moving and brilliant sixth book cements his position as the most exciting storyteller around for readers of 10+. When eleven-year-old Malky and his younger brother Seb become the owners of a "Dreaminator", they are thrust into worlds beyond their wildest imagination. From tree-top flights and Spanish galleons, to thrilling battles and sporting greatness – it seems like nothing is out of reach when you can share a dream with someone else. But... impossible dreams come with incredible risks, and when Seb won't wake up and is taken to hospital in a coma, Malky is forced to leave reality behind and undertake a final, terrifying journey to the stone-age to wake his brother...