Audacity

The Audacity was a unique Forerunner ship originally constructed for the Librarian's research mission to Path Kethona and later adopted by the Lifeshaper as her personal vessel.

History
The Audacity was commissioned around 100,950 BCE for a Lifeworker-led mission to the satellite galaxy of Path Kethona to explore the possible origins of the Flood. It was designed and constructed by the Builders, with the challenges of its mission—namely, the unusually long slipspace journey—in mind. The design and construction of the ship took ten years; approval from the Council for the mission took another ten. Over a million volunteered to be part of the ship's crew on the great expedition. Seven were chosen, including the Librarian herself, three Builders including one named Keeper-of-Tools and another known as Dawn-over-Fields, a Miner named Clearance-of-Old-Forests, and two Lifeworkers, Chant-to-Green and Birth-to-Light. Despite the Builders engineering the ship specifically for the mission, the journey was demanding for its occupants as well as the ecumene at large; despite Audacity crossing the intergalactic gulf in several jumps, the required causal reconciliations accrued significant space-time debt, slowing down slipspace travel across the galaxy and forcing the crew into stasis for portions of the journey.

Following the expedition, the Librarian appropriated the ship as her personal transport. In the final days of the Forerunner-Flood war, she and the IsoDidact used the vessel to travel to the greater Ark after the Flood ravaged Nomdagro, with the Ur-Didact's flagship, Mantle's Approach, following. When the Ur-Didact was preparing to process the human inhabitants of Omega Halo with the Composer, the Librarian attempted to save them by taking the Audacity to the firing path of the Composer, but was pushed aside by a torsion field projected by the Mantle's Approach. After the incident, the Librarian followed Mantle's Approach to Requiem aboard the Audacity, intent on stopping the Ur-Didact's genocidal schemes by locking her husband in a Cryptum. The Audacity was allowed inside due to the Librarian's transponder codes and she succeeded in her plan.

Afterwards, the Librarian used the ship to travel to Erde-Tyrene where she also spent her last days before the firing of the Halo Array.

List of appearances

 * Halo: Silentium