Stroud is a genius. - Rick Riordan, author of the Percy Jackson series. Ghosts and spirits, beware! London's smallest, shabbiest, and most talented psychic detective agency is back. Life is never truly peaceful for Lockwood & Co. Lucy and George are trying to solve the mystery of the talking skull trapped in their ghost jar, while Lockwood desperately searches for an exciting new case. Things seem to improve when the team is called to Kensal Green Cemetery to investigate the grave of a sinister Victorian doctor. Strange apparitions have been reported, and the site needs to be secured. As usual, Lockwood is confident; as usual, everything goes wrong - a terrible phantom is unleashed, and a dangerous object is stolen from the coffin. Lockwood & Co. must retrieve the relic before its power is unleashed, but it's a race against time. Their unpleasant rivals from the Fittes Agency are also on the hunt.