Sol is in turmoil following the recent terrorist attack on Mars. An act resulting in the death of several high ranking members, including their heir apparent. The government in London suspects a conspiracy of the highest order and decides to send Sidney Takumi: A clever, but expendable, off-the-books agent to investigate the incident.

Now, with time running out and several shadowy forces working against her, she must find the culprits and bring them to justice, before the rival empires can assemble their navies, and drag the entire system to war.