"I'm going to put a call into Bobby, though" Dean added, "Let him know what's up, just in case. Maybe see if he has any information we don't."
"He usually does," Sam said, as Dean took out his cellphone.
"Is that a mobile felytone?" Ron asked excitedly. "Can I see it?"
"Wizards don't have cell phones either then, " Sam guessed.
"Or regular telephones," Harry added.
"Because you can use the magic mirror things?" Sam asked. Dean was still trying to decide whether he wanted to hand his phone over to Ron or not.
"We have several different ways of communicating over long distances," Harry answered, "but that's not why we don't use phones. We actually can't."
"What?" Dean said, snatching his phone back close to his body.
"Magic interferes with electronics," Harry answered. "It's actually quite annoying. You should see the number of computers I burn through in a year, Ginny keeps wondering why I don't just give up."
Dean furrowed his brow, and momentarily forgot about calling Bobby. Instead he rummaged through the supply of equipment that he had dumped on the bed until he found his EMF meter. He wondered why he hadn't thought of checking this before.
He clicked it on, but it gave the same low level hum it usually did when they were in a crappy motel room.
"What's that?" Ron asked.
"It's an EMF meter," Dean answered. "It detects changes in electro-magnetic frequencies."
"Elo-what?" Ron asked confused. Harry laughed.
"Sometimes spirits and demons - some other supernatural creatures - affect the ambient electro-magnetic frequencies. It's why ghosts affect radios and television sets."
Dean moved it closer to Harry, it barely changed. Ron was the same. So, Harry's type of wizard was just the same as Dean and Sam's usual witches then...so much for that.
"Hold on, keep it on" Harry said, "I'm curious," then he drew out his wand.
"Wingadium Leviosa" the empty gun Ron had been playing with floated up off the bed. The EMF meter began to whine softely.
"Cool" Dean said, smiling over to Sam. Only to realize that Sam was staring at the floating gun as though he was seeing a ghost. Oh, right.
"Uh, try something else," Dean said, "something big!"
The gun fell unceremoniously back to the bed, and Harry smiled.
"Expecto Patronum" Harry said, and the Stag sprung into life out of the end of his wand. The EMF meter screeched.
"Awesome!" Dean said. Sam was smiling now too. Dean turned to Ron, "Can you do one too?"
"Expecto Patronum" Ron said, and a small yappy dog sprung into life and ran around the Stag's feet. The EMF meter screeched louder.
"You guys try!" Harry said, "concentrate on your ring and bracelet."
Dean thought about how much fun this was, and concentrated on his ring. He saw Sam put a hand to his bracelet beside him. Of course, their Patronuses were stuck where they were, so there was nothing to show whether or not it worked; except the EMF meter screeched louder then made an odd popping noise and fell quiet. Ron looked disappointed and the small dog vanished, Harry's deer vanished shortly afterward.
"Uh," Dean said, "I think we broke it."
"Yeah..." Ron said, "that's why Hermione won't let me have get a computron."
"Computer" Harry corrected.
"That's what I said," Ron replied. Dean got the impression that they had this exchange often.