OMG this was the best one yet! The introduction of time travel to the mix, and the way the author handled it, was simply superb. I felt like I was in an episode of Doctor Who, a favorite series of mine to be sure.
There were new characters introduced, and the alter-ego of other characters revealed... but I cannot say more lest I spoil it for you. Simply know that even if you were slightly disenchanted by the previous novel as I was, this one takes it to 11!
As agents of the Ministry of Peculiar Occurrences, Eliza D. Braun and Wellington Books have faced their share of danger, blowing things up and barely escaping with their lives. But now, the nefarious plans of an evil doctor is set to bring the British Empire under his control, and with the help of the Queen, eliminate all the Ministry agents standing in the way. Can Eliza and Wellington survive when the entire Empire is out to get them?