The soul is, of course, immortal. Mutable, divisible, changeable, yes, but fundamentally indestructible. This is the fact that underpins the various technologies and disciplines of the ethereal sciences, which harness the soul energy as it travels to or departs from the river of aether that surrounds the flat disc of the world.
The Professor is an expert phylacterist, specializing in storing souls in crystals and wire cages and putting them to useful work, like making tea. He wants nothing more than to be left to his studies. But what he discovers when a multiply-mortal assassin attempts to end his quasi-eternal lifestyle holds the potential to destroy everything he thinks he knows. Not to mention end the world.
Worse, it might even invalidate several of his most widely-cited papers...
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This novelette is a stand-alone work of fantasy in an original world. If you enjoy it, don't hesitate to swing by and visit Nathan at www.mirrorshards.org, where you can find a complete bibliography of his published short fiction.