Restore health
Save the game when near a mushroom ring. Quit, then
reload the saved game to restore your health.
Stepping inside any of the mastery rings will restore you life.
This is much faster than saving and restarting the game.
Rune locations
Light Rune: In Chapter 3, a witch and her sister will give you
the rune and a spell.
Fire Rune: In Chapter 4, Defeat the Beguiler and his clown to
get the rune.
Water Rune: In Chapter 8, reunite the lost brothers to get the
rune.
Dark Rune: In Chapter 10, reunite the two children with their
mother to get the rune.