Bright Flame and Serellia can both roll to remove the Amulet of Death.
Instead of being killed instantly, the character is breathed on for D6+6 damage. If they survive, they flee from the treasure chamber and can move as normal on their next turn.
A rope allows you to automatically escape.
Any hit by a character will do at least 1LP damage. Other things such as traps and sneak attacks can do no damage to a character.