As adult readers, we can appreciate the poignancy of this line, and recognise what a clever writer Jansson really was. She uses children's literature to work through all the emotions experienced by a generation of children living in wartime. It is all in the imagery: the dark forest, the strange creatures that you cannot quite trust, the strangers watching from the shadows, and the tiny, helpless folk, just trying to keep safe.
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But for my young children, it was just a thrilling, adventure story. They were simply enthralled, if not flabbergasted, to think that a fully-grown, respectable papa could suddenly go missing like that.
The landscape of the book is dark and mysterious, inhabited by large snake-worms, shadowy hattifatteners, and countless other nameless little creatures, all just eerie enough to appeal to a child's imagination, but not enough to completely terrify.
The illustrations are wonderfully detailed, especially in the hardback edition, published by 'Sort Of' Books, making this particular publication a collector's item for book and art lovers alike.
And what ever happened to Moominpapa? Do Moointroll and Moominmama ever meet him again? Well, you will just have to read it to find out. By Michelle Burrowes