Demelza loves science, but shes also inherited a distinctly un-scientific set of skills: Spectre Detecting - summoning the ghosts of the dead. When Grandma is kidnapped by mysterious villain, she knows Spectre Detecting has something to do with it. Can Demelza solve the deadly mystery?
Lydia has been creating her AI, Henry, for years - shes built herself the perfect boyfriend in a hard-drive filled with lines of code. But what is Henry really - and how far is he willing to go to be everything Lydia desires?