You searched for FIREPROOF BURNPROOF
1. fireproof burnproof
Syntax: cast fireproof <object>
This spell adds permanent protection against fire‑based attacks. Items
protected by this spell are not harmed by fire or the heat metal spell.
Blessed items have less of a chance to be affected by such attacks. Quest
items and containers are immune to fire‑based attacks.
The types of items fire‑based attacks can destroy are trash, drink
containers, potions, scrolls, staves, wands, food, and pills.