An Eternal Spell

The Alchemist mentioned that certain spells are imbued with endless magical energy. Such spells are called eternal spells, and they don't deplete when used as staff ammunition. They can be used indefinitely. These spells are scattered throughout the world, but one was buried alongside its former owner in an underground grave. Find the buried tomb and retrieve the eternal spell to use it.

You've found the buried tomb home to an eternal spell. Enter the tomb and find the spell to make its power yours!