Barry Hutchison tweeted a teaser image of the cover for his next Invisible Fiends book some time ago, but he has now revealed the full finished cover and I thought it so good I just had to share it with you. I think this has now become my favourite of the series so far, which is saying something as the Raggy Maggie cover was one of my picks of 2010. Yet again, illustrator Jonny Duddle has outdone himself. Due out at the beginning of August, Barry says that Doc Mortis is his scariest book to date. Brilliant!