[@Dark Cloud]
The imp took the gold and eyed Alwen nervously. Still if it was talking it couldn’t be heard. Slowly it opened its wings. 
[b][i]’ZAP. ZAP.’[/i][/b]
 
Two sharp lights flared in succession. This time Alwen saw a trickle of energy spiderweb through the invisible cage that held the creature. 

If one was attuned to the weave of magic or had knowledge, this seemed like holy magic and a binding spell. The caster would have to be nearby.

The imp writhed in pain and stomped angrily on the spot, fearing to move too far.