Mystery of the Delton House, A Talbot McNear Novel

This is a 2nd edition, new updated version; Talbot McNear, a professional Paranormal Investigator is called in by Jimmy Letterman, Real Estate Manager, to investigate a haunted farm known locally as the old Delton House. They enlist Roscoe Small, a young gas station attendant for an assistant on an overnight stay at the Delton House.
As they check the place over, they are drawn to an upstairs bedroom which had been Reba and Bradley Delton's room. The pair had both gone missing over fifty years earlier, and never seen again. What happened to the Delton's all those years ago? And what does a 500 year old ghost of a former Conquistador have to do with their vanishing? Will all three men make it out alive?