Las Vegas Paracon 2013 is growing to the proportions of the Stay Puft Marshmallow Man.
What began in 2012 as a 70 person convention, is expected to attract over 500 attendees this year to Binion's Gambling Hall.
The 2013 event began with a ghost hunt Friday night.
The convention floor with over 50 vendors and exhibits will be open starting Saturday morning.
"You're gonna have people that believe in aliens, to the paranormal, to cryptology and all that kind of stuff," said David Purdy, who created the event along with his parents.
The Purdys are part of the Elite Paranormal Vegas Society and have operated a paranormal investigation business in Las Vegas since 2008.
"When I was a kid I used to be able to see a couple of things. I know it sounds weird, it always starts like that, but I used to," said Purdy.
Decades ago it was taboo to speak about the paranormal, but nowadays you can speak of ghouls, goblins and even the dead coming back to life. It's all fair game at Paracon.
"People are coming out now and sharing knowledge, sharing stories, saying, 'Yeah, this happened to me too,'" said Brian Cano the SyFy show Haunted Collector.
Cano will be one of 25 guest speakers at Las Vegas Paracon.
If you don't want to share stories, but create some, there's enough equipment that you can certainly try.
Paranormal Technologies owner Mike Murray has a wide selection of gear to measure infrared light and electromagnetic fields, with prices starting at around $35.
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