Touch me!

"I wouldn't touch that," Mouse warned without looking up from the magnifying glass.
Raven pulled his hand back quickly.
"Even though it's trying to get you to touch it," she continued. "Surprising number of magic artefacts do."
He frowned.
"Why?"
"Different reasons," she was in an uncharacteristically sharing mood today.
"Mostly so they can take something from you, though. Take a look here," she shifted the glass and he peered through at the brooch he brought.
Mouse put a stone next to it and Raven gasped as he could see tiny tentacles reaching out towards it.
"These feed off magic."