The Bone Shard War

Queue up The Bone Shard War by Andrea Stewart on Audiobook Flow and let the chapters run. The whole book plays in the browser.

Lin Sukai has won her first victory as Emperor, but the future of the Phoenix Empire hangs in the balance – and Lin is dangerously short of allies. As her own governors plot treason, the Shardless Few renew hostilities. Worse still, Lin discovers her old nemesis Nisong has joined forces with the rogue Alanga, Ragan. Both seek her death.

That is the whole offer: the full recording, a chapter index, and a player that does not ask you to sign up.