I realised today that I hadn’t yet gathered all my Invisible Fiends books together in the same place at the same time. Partly this was because I was worried gathering such fantastic books together would result in some sort of cataclysmic black hole of awesomeness which would consume the very planet itself, and partly because I forgot.
Anyway, I’ve rounded them all up now and here they are – all six Invisible Fiends books. Look at them. LOOK AT THEM!
From bottom to top we have…
(The Award-Winning) Mr Mumbles. The book that kicked off the whole series. It’s hard to believe this came out almost three years ago now. They grow up so fast.
Raggy Maggie. Of all the books, this one probably scares me the most. OK, maybe tied with book four. One review called the villain, Caddie, “one of the greatest ever creations in children’s horror”. So there.
The Crowmaster. The third book in the series was published in February 2011. It resulted in me getting an email from a woman who threatened to report me to the RSPCA for killing a dog in the story. They have yet to turn up.
Doc Mortis. This is the book that gave me nightmares and forced me to sleep with the light on for about two months after I finished writing it. It’s also the first book in the series I had to “tone down” to get past my editor. Oh, and it’s too scary to publish in Germany.
The Beast. The first book in the series to feature a “proper monster”, although things aren’t necessarily what they seem. Loved all the emails I got about the shock ending.
The Darkest Corners. And finally we come to the concluding part of the series. About 50% of what happened in this book was planned from day one, and the rest I made up as I went along. Surprised by the number of comments I’ve had from people who said they cried at the ending. I thought it would just be me… *sniff*.
And that’s it. The Invisible Fiends series, done and dusted. I’m sure there’s lots I would change if I was to go back and write the books again, but I’m still immensely proud of the series. If there’s enough support for the idea I may do some more short stories along the lines of The Rise of Doc Mortis. Think I should? Leave a comment below.

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i think you should do another book on the rise of Doc Mortis as I love the invisible fiends series and my mum is getting me the last book for christmas
Hi Erica,
I’m thinking of doing some short stories about the other Invisible Fiends baddies, so keep your eyes open to find out when they go up. If you want to hear about them click the link at the top to Join the Newsletter and fill out your details.