Seeing is believing - or is it?

Viola needs a holiday. But, even at the beach or on Christmas Eve, there are things afoot. The Grand Tour of Europe starts with the Carnevale di Venezia. A chance meeting leads Viola to Paris, where she is lured into the world of illusionists. Will she finally let go of the past, or will it haunt her forever?

Viola Stewart is back, with both old friends and new. Together, they meet mysterious strangers, ingenious scientists and nefarious anarchists as they pit wits against the Men in Grey's latest plans of Empire domination.