Free Equal Rites by Terry Pratchett

tongues being cut out and their entrails torn by wild birds and their ashes scattered to the eight winds and so on. After some hours of this sort of thing the apprentice can be admitted to the brotherhood of the Wise and Enlightened.
    There is also a long speech. By sheer coincidence Granny got the essence of it in a nutshell.
    Esk took the staff and peered at it.
    “It’s very nice,” she said uncertainly. “The carvings are pretty. What’s it for?”
    “Sit down now. And listen properly for once. On the day you were born…”

    “…and that’s the shape of it.”
    Esk looked hard at the staff, then at Granny.
    “I’ve got to be a wizard?”
    “Yes. No. I don’t know.”
    “That isn’t really an answer, Granny,” Esk said reproachfully. “Am I or amp’t I?”
    “Women can’t be wizards,” said Granny bluntly. “It’s agin nature. You might as well have a female blacksmith.”
    “Actually I’ve watched dad at work and I don’t see why—”
    “Look,” said Granny hurriedly, “you can’t have a female wizard any more than you can have a male witch, because—”
    “I’ve heard of male witches,” said Esk meekly.
    “Warlocks!”
    “I think so.”
    “I mean there’s no male witches, only silly men,” said Granny hotly. “If men were witches, they’d be wizards. It’s all down to—” she tapped her head “—headology. How your mind works. Men’s minds work different from ours, see. Their magic’s all numbers and angles and edges and what the stars are doing, as if that really mattered. It’s all power. It’s all—” Granny paused, and dredged up her favorite word to describe all she despised in wizardry, “—jommetry.”
    “That’s all right, then,” said Esk, relieved. “I’ll stay here and learn witchery.”
    “Ah,” said Granny gloomily, “that’s all very well for you to say. I don’t think it will be as easy as that.”
    “But you said that men can be wizards and women can be witches and it can’t be the other way around.”
    “That’s right.”
    “Well, then,” said Esk triumphantly, “it’s all solved, isn’t it? I can’t help but be a witch.”
    Granny pointed to the staff. Esk shrugged.
    “It’s just an old stick.”
    Granny shook her head. Esk blinked.
    “No?”
    “No.”
    “And I can’t be a witch?”
    “I don’t know what you can be. Hold the staff.”
    “What?”
    “Hold the staff. Now, I’ve laid the fire in the grate. Light it.”
    “The tinderbox is—” Esk began.
    “You once told me there were better ways of lighting fires. Show me.”
    Granny stood up. In the dimness of the kitchen she seemed to grow until she filled it with shifting, ragged shadows, shot with menace. Her eyes glared down at Esk.
    “Show me,” she commanded, and her voice had ice in it.
    “But—” said Esk desperately, clutching the heavy staff to her and knocking her stool over in her haste to back away.
    “Show me.”
    With a scream Esk spun around. Fire flared from her fingertips and arced across the room. The kindling exploded with a force that hurled the furniture around the room and a ball of fierce green light spluttered on the hearth.
    Changing patterns sped across it as it spun sizzling on the stones, which cracked and then flowed. The iron fireback resisted bravely for a few seconds before melting like wax; it made a final appearance as a red smear across the fireball and then vanished. A moment later the kettle went the same way.
    Just when it seemed that the chimney would follow them the ancient hearthstone gave up, and with a final splutter the fireball sank from view.
    The occasional crackle or puff of steam signaled its passage through the earth. Apart from that there was silence, the loud hissing silence that comes after an ear-splattering noise, and after the actinic glare the room seemed pitch dark.
    Eventually Granny crawled out from behind the table and crept as closely as she dared to the hole, which was still surrounded by a crust