That doesn’t really answer my questions. Who are these “small demons”?
You intro is rather old but it seems you’re probably ne to evocation? I might suggest this is a pretty advanced task if you don’t already have experience evoking and getting messages from entities.
I would also suggest there are better techniques to use, especially if you know the rough area that you can search in… try map dowsing using a pendulum for example. Practice a bit with the pendulum first. Or another divination method that’s a bit easier to pick up in a hurry.
Here’s a Pendulum tutorial:
And we have collected some more divination tutorials here: