The Firma Twins and the Purple Staff of Death, A Firma Twins Adventure, Book 1 by D. H. Timpko is a cleverly written book for ages nine to twelve.
It is science fiction/fantasy. I gave it four stars.
Electra & Isis are the Firma twins. It is their twelfth birthday.
It is Isis' turn to decide how to celebrate & she picks the museum where a mummy is being autopsied. While there she sees a vision. After they leave, their family van is rear ended by a Dr. Dearth. Then the mystery begins.
I received a complimentary copy from Gettier Group & NetGalley. That did not change my opinion for this review.
Link to purchase: http://www.amazon.com/gp/product/098608820X