Rune locations

Rune Location
Dark rune
In Chapter 10, reunite the two children with their mother to get the rune.
Fire rune
In Chapter 4, Defeat the Beguiler and his clown to get the rune.
Light rune
In Chapter 3, a witch and her sister will give you the rune and a spell.
Water rune
In Chapter 8, reunite the lost brothers to get the rune.

Restore health

Save the game when near a mushroom ring. Quit, then reload the saved game to restore your health.