In THE SONG OF THE JUBILEE, Captain Broden Barão, Striker Nero Silvana, and Strategist Verena Iglehart, together with the elite Reassortment research team, release a protohuman on the Island of Reverie, testing a serum designed to thwart the Reassortment Strain. They must find a cure to the plague or suffer the inevitable consequence for failure: demotion or worse, exile to the Lower Level some four thousand meters beneath the Earth's surface. Meanwhile, in the Great Commonwealth, two thousand five hundred meters deep, the resistance movement known as the Liberation Front suffers a disastrous defeat when its leader, Jeremiah Selendia, is captured by the Lady Isabelle Lutetia. With Jeremiah held by the government, his middle son unexpectedly finds the weight of the war on his shoulders. It falls to Johann to lead the Front, to rescue his father from one of the commonwealth's most impregnable fortresses, and to keep his younger, underdeveloped brother safe.