Peter Locke 
Mikkee the Martian [EPUB ebook] 
Book Three the Ghost and the House

Mikkee the Martian and the twins are watching a TV program about ghost hunting. Billy does not believe in ghosts, but Mikkee knows otherwise. He invites the twins to visit a haunted house. There they meet the ghost and hear an evil story of how he was left to roam the earth. Mikkee summons a higher authority, finds a solution to the ghost’s problems, and solves a murder mystery over a hundred years old.