The Adventures of the Openheimer Children

Join Hershey, Olga, Joshua, Camilla, Nathan, Clarrize,and Carmel together with Professors Rusell & his wife Althea on a fun historical adventure.
All was good, but until an unknown person broke out on the Senvivaldi Palace and stole the Genili Gem a magical gem that if joined with the Secria, Escrow, and Stunergy gems it will become the most powerful of all: the Ghibelline. The gang started to investigate at once and found a lot of possible suspect. But after that dreadful day, the king and queen was kidnapped!. How can a group of children and a pair of historian and scientist solve a well performed crime.