3 tips for writing watertight fantasy, science fiction and time travel stories

You could argue that fantasy and science fiction are the genres where we can be most imaginative and inventive. But this very freedom brings responsibility. I see a lot of science fiction and fantasy authors who confuse the reader because they don’t cover a few very important bases. And I’ve had to address a few of these issues myself in my sci-fi fable Lifeform Three.

1 The logic of the world must be established – and stuck to

You need to establish, early on, what can be done and what can’t. If you have robots, for instance, what can and can’t they do? Are they benevolent? Of course, you don’t have to explain this if your story is a mystery, where the characters have to puzzle out the logic of the world, but otherwise you need to cover those bases as part of the setting description.

This particularly applies with stories of time travel and doppelgangers. One of the reasons readers enjoy them is that they must be cleverly plotted. To do this, you have to set limits and rules, and play within them. If, late in the story, you suddenly make up a new thing that the heroes can do, that annoys the reader. The very thing they wanted was to see how you would use your particular time travel physics in an ingenious way.

Staying with time travel, you must be time-travel savvy. Certain issues are always tackled – meeting yourself, duplicating yourself, leaving messages for yourself, saving your parents, changing history, fixing the lottery and so on. Do what you like with them, but readers need to see you’ve thought through these paradoxes.

You might not reveal all your world rules to the reader, but you still need to know them.

2 Consider the consequences of magic powers or devices

I see a lot of novels where characters have magic powers or gizmos that look far too potent. I was editing a manuscript where a character gets out of a scrape with a device that allows him to melt stone. But it never appeared again – which seems unlikely as it was so useful. Furthermore, the reader expects to see such things used more than once.

Also, the writer hadn’t thought about other consequences if such a device existed. Certainly, it wouldn’t be possible to keep someone a prisoner. Not only that, there would be other consequences in the society. Just to take one example, how would people make their homes secure? The writer hadn’t thought about this; she’d invented the gizmo on the spur of the moment to solve an immediate problem.

Star Trek used to do this all the time. They had a holodeck, yet the scanner on the flight deck was 2D. If you had 3D imaging technology, wouldn’t you use it on all your visualising devices? (No doubt someone will explain this to me in the comments…)

So make your technology (or magic faculties) consistent. And beware of inventing devices or magical powers that are too potent and far-reaching. (Unless you mean to do that deliberately, or want to invent Kryptonite.)

3 Be precise with description

I fell foul of this myself with Lifeform Three. In an invented world, you have to be more careful than usual with description. The reader will scrutinise every word to build the setting in their mind – and it’s easy to mislead them. With Lifeform Three, I had a statue in a dancing pose, and my editor got confused because I described the statue as ‘twirling’. ‘Can she move?’ he said. ‘No,’ I said, ‘it’s just the statue’s pose.’ ‘Write a description that doesn’t suggest movement,’ he said. I changed it to ‘posed as if about to pirouette’.

Thanks for the pic The Hills Are Alive on Flickr 

Those are my three top rules for writing science fiction, fantasy and time travel stories. Do you have any to add? Or gripes about films, TV shows or novels that have transgressed these rules? Let’s discuss

I’ve tweaked the title of the characters book. Why? I realised the original title Bring Characters To Life was rather ho-hum and didn’t explain why you should go to the effort of making characters believable. So it’s now called Writing Characters Who’ll Keep Readers Captivated – which is, of course, what it’s all about. Plus it scores better for SEO, which should work magic in searches (nobody would think to search for Bring Characters To Life unless they already knew about it). The new cover and title will take a few days to percolate through all the sales channels, but if you buy it you’ll get the updated look. Do you think it’s an improvement?

Now back to comments. Time travel, fantasy and science fiction, writing rules thereof. Over to you…