Enc.:	IS:	-	XP: 4k	GP: 15k
Miscellaneous Magic	-	Magic Items	-	DMG

This device wards the wearer against all divination and mental or magical location and/or detection.

The wearer cannot be detected through clairaudience, cloirvoyonce,
ESP, telepathy, crystal balls, or any other scrying devices. No aura is
discernible on the wearer, and predictions cannot be made regarding him
or her, unless some powerful being is consulted.

Q: Will an amulet of proof against
detection and location prevent an
invisible character from being detected
by someone with a detect invisibility spell?

A: Yes. The amulet defeats low-level divinations,
including all detect spells. High-level
divinations such as commune still work,
however. The invisible character in the
example can be revealed by dust of appearance
(which is not a divination) and by
the methods described on pages 59-60 of
the DMG. Note that normal invisibility is
broken when the recipient attacks.
(147.103)

Bombay wrote:
Hey Gary,

...

Mindblank and Amulet vs Detectoin and Location, would both of these prevent Devils/Demons and other higher beings from scrying on you?
Using Commune or Contact other plan.
I have ruled yes, that even Devils or Demons or even Lesser gods cannot find players using these items/spells.
Some say Im giving these abilities way too much power.
Just curious as to what limitations you would have given these items with regarding higher powers(Devils/demons/Gods)?
 

I agree in principle with your ruling.

The major deities demons and devils would not be foiled thus, however.
Greater magical protections would be needed.

Cheers,
Gary