Pure Dead Brilliant

There''s trouble brewing at StregaSchloss! When Signora Strega-Borgia invites some would-be witches to stay, weird things begin to happen. Pandora can''t resist the temptation of time travel - and Titus picks up a strange and deadly computer virus. Are they falling under the witches'' spell? Or is the ghost of the Strega-Borgias'' past coming back to haunt them all?