Manaxus was a planet.
Ace went with the Seventh Doctor to Manaxus where they landed in a reconstruction of Hamlet. Meeting Benny's old friend Panactum Gilmanuk, Ace helped him to remove the mud from the theatre that they were digging out. She was later tasked with piloting the archaeologists' ship back to Heletia when their pilot was killed. Shortly afterwards, they were attacked and she devised a way to stop the attackers by firing a load of explosives at them. Discovering the atrocities that the Heletians had committed and wanting to show the Exec, Ace was imprisoned by Locris Marlock. After being rescued by Benny, she watched the performance of The Good Soldiers and found it boring. (PROSE: Theatre of War)