"I wear it all the time, and yeah, that's about it. I... don't think you're high. Are you?" Miguel replied, pausing for a few seconds until Gabe caught up with him, and then trying to check his brother's eyes to see if he was high on something.
"Sarah's a technomage," he began to explain after that. "She can create machines that use both regular components and magic to work. The crystals are kind of like magical capacitors. All my stuff in the lab has been reworked to include them in case there are any power surges from Sarah. It's why Lyla has a purple tinge to her when she manifests in the apartment or the lab. You'll see in about a minute."
He let the crystal go as he spoke, the chain around his neck now feeling cold for a moment, and then tucked it back in under his tee-shirt to keep it safe.
"The door up ahead on the left is the lab. I'll introduce you to the big spider while we're there."