Clockwork Scarab

Victorian England is experiencing some strange coincidences.  Two young women from society have disappeared and one has turned up dead in the museum. In turn, two other young women from famous lineage are asked to help solve this murder and the disappearance of the other in the name of the crown, and this is how Mina Holmes and Evaline Stoker meet each other.  Mina is methodical and perspicacious like her uncle Sherlock.  She also loves the new gadgetry being invented, such as a steam gun and other mechanical devices.  Evaline, on the other hand jumps right into the situation.  She possesses athletic abilities beyond mere humanity and recognizes her abilities to discern the whereabouts of the undead are a part of her, which her broth Bram writes about.  In another coincidence of pairs, two young men hiding their true identity are slowly becoming a part of the mystery as well.  Who is the killer?  Egyptology and secret societies are only part of the screen veiling the truth.