At the observatory, Bart hears signals from outerspace and runs into Shirley on the case. When two officials show up, it becomes clear that the man in charge of the observatory is not who he says he is.

At a horse ranch, the ghost of a horse seems to be stealing other horses. Shirley meets a boy working at the ranch that may be able to help solve the case.

Molly and Stink are accused of stealing exam questions. Stink gets kicked out of the Academy and sets out to become a stand-up comic.

Mr. Howie stays at the Howie Farm, but when he stays their longer than he had expected, Shirley has questions. Not only do the animals on the farm act nuts, but there is a ghost legend, and a feud between the Howies and the Wilkinsons.

Shirley receives a message that her Grandmother has been kidnapped. As Shirley looks for her Grandmother, her own friends think that she was abducted.

Alicia shoots a movie, but when strange occurences and dissapearances happen, Shirley follows the wrong suspect and puts herself in danger.

To protect a friend, Bo sabotages the presses of the Redington Tribune.

Shirley witnesses a death threat against author Constance Quick and believes that the intended target may be a lip-syncing singer Jake Bane.

After Bo is attacked and his clothing is stolen by a gang of girls, Shirley joins them in order to find out more information about a former member they may have kidnapped.

Local stores are being robbed of $10 bills, and the theif is returning them afterwards. Shirley and Bo figure that the theif is looking for a special bill.

When a fever strikes a ruby mine in Rwanda, it's cure provides clues to the whereabouts of Shirley's missing and presumed dead mother.

Shirley and her dad head to Rwanda in order to gather more information on Shirley's mother.