Magic! What would fantasy be without it? About the same place as science fiction if you took out the science. Speculative fiction is all about the sense of wonder that it makes you feel, and the main way that fantasy does that is through magic.
In Brandon Sanderson’s writing class (which he has generously made available to the public, by videotaping and podcasting his lectures), Sanderson divides magic into two broad types: hard magic and soft magic. And while some fantasy readers take issue with the way that Sanderson leans more toward hard magic in his own books, the division he draws between hard and soft magic is still quite useful.
Soft magic is the kind of magic that isn’t fully explained, and is mostly left up to the reader’s imagination. Magical things happen, and we don’t know how or why, but it helps to instill a feeling that the world is vast and wondrous. As such, soft magic is primarily used as a way to enhance the setting.
In Tolkien’s Lord of the Rings, a good example of this is the elves. We know that they are immortal and that they are far more glorious than most other races, but we never really know the full extent of their capabilities. Gandalf is another example of this. Just what was he doing with the Balrog, and how did defeating that ancient beast in a marathon spelunking-hiking-wrestling match? Who knows!
And that’s the biggest criticism of soft magic: if you don’t know how the magic works, how do you know that the heroes won’t just pull a rabbit out of their hat to save them at the last possible moment? Or summon the eagles, which amounts to the same thing. For that matter, if the eagles are so awesome, why don’t the heroes just fly on their backs all the way to Mount Doom? I mean, can you believe what it would have been like if they had to walk the entire way? Somebody might have died!
Hard magic, on the other hand, is the kind of magic where everything is explained. It’s not just magic, but a whole magic system, which operates by rules in the same way that our physical universe works according to rules. In essence, it is the fantasy inverse of Clarke’s third law, where any sufficiently explained magic is indistinguishable from science. The reader might not know all of the rules, but the writer does, and he drops enough hints throughout to make the reader confident that there are rules.
In Lord of the Rings, a good example of hard magic is the ring of power itself. What does it do? It makes you invisible if you put it on (though it makes you shine like a beacon to Sauron and his ringwraiths), and it tempts you with false promises of power, with the goal of leading you back into the clutches of Sauron. If Sauron ever gets the ring, it’s game over, because he will regain all of his powers. Oh, and it also stretches out your lifespan, at the cost of your quality of life (and quite possibly your sanity).
Because we know the rules the govern the magic of the one ring, we aren’t upset when Tolkien uses that magic to advance the plot of the book. Indeed, that is the biggest strength of hard magic: that it can be used in all sorts of interesting and creative ways to advance the plot.
“But hold on!” the advocates of soft magic will say. “If you reduce your magic into a fancy plot device, it kills the sense of wonder that comes with the best magic systems.” After all, there’s a reason why Tom Bombadil is in the book. There are two big things that happen when the hobbits make their detour to his house: first, Tom Bombadil puts on the ring and shows that it has absolutely no effect on him; and second, when Frodo puts on the ring and goes invisible, Tom Bombadil demonstrates that he can still see Frodo.
It’s subtle, but it’s there—and believe it or not, it’s there for a reason. By demonstrating that there are higher or more powerful forces that can supersede the laws of magic surrounding the one ring, Tolkien preserves that sense of vastness and wonder that more rules-based magic systems tend to lose.
There is a rejoinder to that point, however. When hard magic is done well, it creates its own sense of wonder, more akin to what we feel when we’re playing a good video game. It’s the wonder that comes from imagining what it would be like to exercise the kind of magical powers that we see the characters exercise. Brandon Sanderson is a master of this, and my favorite example is from his novella The Emperor’s Soul. By the end of that book, I couldn’t help but daydream what I would do if I had my own set of soulstamps. One of them would make me an awesome writer, the other an awesome marketer, and the third an awesome publisher. How cool would that be? (Okay, maybe you have to be an indie author yourself to fully get it… but still!)
As you can probably guess, though, the best fantasy novels feature a blend of hard and soft magic—and Sanderson says as much in his lectures. There’s a reason why he draws from Lord of the Rings for examples of each, much as I’ve done here. And ultimately, it’s less of a binary and more of a spectrum. The important thing is to know when to lean more toward the soft side, and when to lean more to the hard side. The best authors can play to the strengths of both to capture that magical sense of wonder that makes fantasy such a pleasure to read.
