When I was a child, I thought that the characters who appeared in the stories I read and loved all knew each other. More recently, I read (somewhere…can’t remember where) that it’s common for small children to think that way.
I thought Winnie-the-Pooh knew Ratty and Moley, who were in turn good friends with Timmy the Dog from the Famous Five. I didn’t understand why Snow White and Cinderella couldn’t join forces, the two of them together easily defeating all the wicked witches, sinister stepmothers and evil queens in the world.
As we grow older, in a way it’s sad that we come to realise none of these characters are real, that they exist only in a little pretend-world snapshot. If we found our way into their worlds through a magic mirror or a gateway in a stone circle, or by any other mysterious means, we would not find ourselves face to face with the story-world. I can remember carefully examining the back of my wardrobe. But no, to my disgust there was no Narnia hidden away. I’d put on my anorak and wellies for nothing.
Yet we–whether author or reader or both–people our world with fictional characters. I’d love to know the psychology behind that. 
Some say storytelling is to do with conveying history or traditional or moral values to a younger generation. Some say it is purely for entertainment, keeping the kids quiet in the back of the cave whilst they wait for their dinosaur steaks. Some say it is to explore concepts and ideas beyond our own direct experience, or to combat loneliness, or to relieve stress.
Whatever the reason, we love our stories. We love our imaginary worlds and the characters who live a life that we cannot.
Heroes–storybook people–don’t age. I mean, writers can make them age, but the writers are in complete control and it isn’t inevitable. Sometimes heroes just are ageless, forever young. And characters suffer, yes, but only within the realms of the story. They don’t live their whole lives with unanswered questions, or with serious flaws of their personalities. We don’t watch them decline into old age. (Usually, though. I’m thinking of Wallander.) They remain perpetually young and golden.
This way you can read their story when you are yourself young, and again and again over the long passage of years, then again when you are old and changed, experienced and maybe a little bit cynical. But their bright outlook and determined hopefulness remains unchanged. They walk through our lives beside us. They are there before we are born, and will continue long after we are gone. They are eternally young, preserved in the pages of memory and written and spoken works.
But we long for them to meet one another, to bring their own strengths and successes to benefit the lives of others.
And with creative works, we can do that. So we have superheroes popping up in each other’s stories. We have mash-ups, mix-ups and collaborations. It’s always interesting to see how this works. Maybe Inspector Barnaby should pop out to the Caribbean for a holiday and help out the Saint Marie police force in a Death In Paradise/Midsomer Murders extravaganza?
And spin-offs are popular: capturing and extending the audience for each side. Morse leads to Lewis and then to Endeavour. We love our characters to work together; we love to see their lives played out; we want to meet all their family and friends. Miss Fisher’s niece arrives on the scene to carry the torch forward in Miss Fisher’s Modern mysteries.
I was interested this week to see that authors Lee Strauss and Beth Byers have come together to produce a crossover work featuring their respective main characters, Ginger Gold and Violet Carlyle, in a new short work Mystery on Valentine’s Day (due out on 11 February this year). I’m intrigued. I will definitely buy that book!
And also on the wonderful internet, I came across a number of books that are ‘about’ books, or an authors work, being a guide to the author’s books, best reading sequence and all the characters. I was astonished to discover there’s a market for that! 
With invented realities, the possibilities are endless. Fans of different series welcome the meeting of their favourite characters, I’m sure. It must be the next best thing to meeting a character yourself, to read about or watch a character you love being met by another character you love, and so setting in motion a whole new series of stories in the bookiverse.
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When we look at the news it’s so easy to get really depressed. So often it seems that only terrible things are happening in the world; ecologically, politically, financially, economically, even in the arts or in entertainment, there is often bad or sad news. The winter days are cold and dreary, sunlight seems to have forgotten us, and Spring and Summer seem so far away.
