Unlock?

[Allan727]

What can you use the unlock spell. I have tried it on locked doors but nothing.

[Catacomber]

It may be that the doors you're trying to use it on are not unlockable. In Mad Dwarves' Castle in LukoII, unlock is a good spell to have.

[Elendil / Redshift]

Unlock spells (either what you cast or from wands) have a level. If they are lower level than the locks, they won't work. And of course some doors are not unlockable by the spell, no matter the level.