The Knick-Knack Man : Book 1 in The Girls Ghost Club Adventures

Six schoolgirl friends form a club to investigate ghosts. Yet as they get pulled into the Knick-Knack Man mystery, and "this old man" appears when they summons him, one by one it claims their lives. Just like the rumor Jena first heard at school, and they researched during their sleepover, the internet legend proved true. But defying their vote, two of them experiment with it, and Jena is the first to be taken. Next, Kelsey gets abducted, and her little sister, Kinsley, will not let it go. Yet then, the third one—Taylor, is murdered also, and three remain to take on a new challenge: figure out how to stop this phantom's siege of terror and death. You won't want to miss what is about to emerge in the first book of this ghost hunting series, as an age-old nursery rhyme comes to life in a malevolent way: a secret that only the blackbirds seem to know, while the scarecrow stands and watches.