Jonah, thirteen, and Katherine, eleven, travel through time to 1918 Russia just as Alexei, Anastasia, and the rest of Tsar Nicholas II's family is about to be executed. Author's note includes facts about the Romanovs and the mystery surrounding their deaths.

Presented with an unexpected assignment, Alex Rider's greatest nemesis, Yassen Gregoravich, recalls his life and the path that led him to become an assassin while his one-time friend, Alex's uncle, became a spy.

In 1934, thirteen-year-old Marya and her younger brother, Georgi, set out alone on a long and arduous journey into Siberia to find their mother after she and their father are exiled for opposing Stalin.

Living in Las Vegas with his unsuccessful father, Nick Rostov learns on his thirteenth birthday that he is descended from a powerful line of Russian Magickeepers on his dead mother's side, and that the equally powerful but evil Shadowkeepers will stop at nothing to get an ancient relic that his grandfather gave him.