Mae Llysgennad Mahit Dzmare i’r Ymerodraeth Teixcalaanli yn gyffrous i ddechrau ei swydd newydd. Ond, mae’n dechrau pryderu pan mae’n darganfod cafodd ei rhagflaenydd ei lladd, er nad ydy unrhyw un yn fodlon cyfadde’ taw llofruddiaeth oedd achos ei marwolaeth. Dilynwch Dzmare wrth iddi geisio darganfod y gwirionedd tu ôl y dirgel yma, tra ei bod hi’n cadw cyfrinachau ei hun yn gudd…

Ambassador Mahit Dzmare travels to the Teixcalaanli Empire’s interstellar capital, eager to take up her new post. Yet when she arrives, she discovers her predecessor was murdered.

But no one will admit his death wasn’t accidental – and she might be next. Now Mahit must navigate the capital’s enticing yet deadly halls of power, to discover dangerous truths. And while she hunts for the killer, Mahit must somehow prevent the rapacious Empire from annexing her home: a small, fiercely independent mining station.

As she sinks deeper into an alien culture that is all too seductive, Mahit engages in intrigues of her own. For she’s hiding an extraordinary technological secret, one which might destroy her station and its way of life. Or it might save them from annihilation.