Anvilstones

 Anvilstones appear as dull grey spheres. They are actually similar to geodes, being hollow with crystalline structures inside.

Anvilstones have the strange property of being able to store kinetic energy. Furthermore, the energy seems to be compounded.

When an anvil stone is simultaneously struck on two opposing points, the energy is stored within the shell. The energy is slowly radiated as a white light. The stronger the blow, the more energy - and brighter the light - is stored.

The easiest way to charge a stone is to strike it on an anvil with a hefty hammer; hence their name.

Small anvil stones are fairly common, with many households having 1 or 2 for use at night.

Often the stones are dangled in a wire net, to allow a clear emittance of light.

Recent Discoveries

The famous gnome, Fimdost discovered that an anvilstone precisely bored at its poles and threaded by a conductive wire creates an electric battery.

Currently, these batteries are what powers the arc ships and other new inventions.

This has greatly increased the demand for anvilstones across the known world.

Designer's Note

I've had the idea for a magi-natural battery source for a setting for a while. It is a way to add fantastic creations such has hovering galleons, spark guns, and other innovations to a setting.

For my upcoming game, anvilstones have been used as batteries for about 100 years, and they have powered the discovery of the eastern continent.

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