Lisa Llewellen began to notice strange things within weeks after moving into her Antioch home off G Street. At first they were insignificant noises, such as a shuffling sound on the stairs or a thump that occurred in an upstairs bedroom. They were things that could be explained.

One night, Lisa received a startling surprise while standing in front of her kitchen sink.

“Mom,” a child’s voice said as someone tugged on her shirt.

Lisa turned around, expecting to find one of her children standing behind her. She was alone in the kitchen while they were together upstairs. From that point on, she became a believer in the paranormal.

Her husband wasn’t so quick to believe until he heard someone rattling his bedroom door late at night. When he went to investigate, he found no one outside. A thorough search of the house turned up nothing.

The Llewellens lived in that house for seven years, until they decided that they needed a bigger place. At one point during this time, their son refused to go upstairs during the day unless someone went with him. Lisa’s brother, who was a frequent visitor, saw a little girl running up and down the stairs. He saw her again when she peeked at him from under the living room coffee table.

When the Llewellens rented out the house, they didn’t tell the new tenants about the ghostly girl. They fled four months later and disappeared.

“They told me that they were standing in the living room and the floor began to buckle and wave,” said Realtor Joy DiRicco in an interview. “Not just a little movement; a large, noticeable movement.”

DiRicco went to the house to see if she could find a possible cause for the floor’s bizarre behavior. She found nothing. Acting on a hunch, she called the Llewellens, who told her about their experiences. This left her no other choice but to disclose the information about the ghost when she put the house back on the market.

“There are people out there who want these kinds of houses, and those who don’t,” she said.