The story begins with a phone call to investigate a 90 year old murder case and conspiracy charge involving former assistant treasurer of the now defunct Marathon Motors, Sydney Liggett, who mysteriously disappeared in 1914. Now Sydney’s son, 83 year-old Arthur Liggett, wants to clear the family name and find the embezzler and possible murderer before he dies. Confined to a nursing home, Arthur calls his granddaughter to confide in her about a recent phone call from a construction foreman who found some records dating back to 1914 during the renovation of the old Marathon Motors Building. There was a handwritten note attached to them addressed to the District Attorney. Now his granddaughter, Kelli Kane, wants to do what her grandfather cannot, solve the mystery.

To solve the cold case, Greg and Jill begin looking for Bradley, the man with the papers. Interestingly, he turns out to be a missing person and the chase is on.

I enjoyed the free-style writing of Campbell, but it reminded me of a children’s detective chapter book series. It is a fast paced book, which goes right to the heart of the case and doesn’t stop until the end, which comes pretty fast. Sorry, no guesswork here.