Lock/Knock always used in batches of fives?

[Shostak]

Originally Posted by phiwum

But then I realized that, no matter how middling the wizard or how unimportant the door, just about every door locked with a Lock spell ought to have five such spells on it.

A related question might be how many Conceal spells does each Lock spell have on it? After all, if something is worth protecting with a Lock spell, isnt' it worth hiding that spell?

[phiwum]

Originally Posted by Shostak

A related question might be how many Conceal spells does each Lock spell have on it? After all, if something is worth protecting with a Lock spell, isnt' it worth hiding that spell?

So far, for my NPCs, Conceal/Reveal is less common the Lock/Knock. But at IQ 11, it should probably be pretty common.