This is a sample of the story titled The Ghost of River City featuring Christy and Megan Parker, who are identical twins.  I also use these characters in my mystery series I'm writing.

The Ghost of River City

Amateur Detectives Christy and Megan Parker, who were identical twins, were in their bedroom listening to their television while they read their mystery books. When they heard the announcer come on with a special bulletin, they heard on someone seeing two bank robbers in River City.

When Christy and Megan heard the message, they stiffened up from their reading and stared at each other. They knew what the other one thought about the two men that they observed climbing the mountains in the country north of town, so they wondered if they happened to be the bank robbers.