Sathya is a friend and apprentice of Anna Fang. She appears in all of the Mortal Engines Quartet books except Infernal Devices.


Early lifeEdit

Sathya's hatred of tractionism stemmed from her childhood; she grew up in a nomadic village that lived in the track marks of traction cities, and were always poor and starving. Eventually she managed to 'escape' the village by stowing away in the Jenny Haniver, the airship of Anna Fang. In the Anti-Traction League she proved her tactical and combat skill, becoming a wing-commander. She also developed a close relationship with Anna.

Mortal EnginesEdit

She was a still a teenager when Anna introduced her to Tom Natsworthy and Hester Shaw. As the former came from London, Sathya accused him of being a tractionist spy.

Predator's GoldEdit

After Anna's death at the hands of Thaddeus Valentine, Sathya joined the Green Storm, becoming the facility commander at Rogue's Roost. She travelled to Zhan Shan and helped to steal Anna's corpse, in the hopes that Dr Popjoy could resurrect her as a Stalker. While Popjoy succeeded in turning Anna's body into the Stalker Fang, he failed to reinstate her memories and personality, so Sathya had the Memory Chamber constructed in an effort to restore them.

After Widgery Blinkoe captured Hester Shaw, Sathya brought Hester multiple times to visit the Stalker Fang. Although the Stalker did not respond to Hester's presence, Sathya's anger towards Hester faded and she eventually confided in the assassin. This new trust was sharply broken when Tom arrived at Rogue's Roost. Believing Hester had tricked her, she attempted to kill both Tom and Hester, but was stopped when the Stalker Fang severed her arm.

A Darkling PlainEdit

Outcast to a remote part of the largest mountain in Shan Guo, Sathya became a hermit, although supplies were given to her by the nearby village in the foothills once a month. Here she raised animals and - intially - trained herself for combat on a daily basis. However, as she got older her anger wore out and she began to appreciate her exile; the other option was execution.

The Stalker Fang found Sathya, and regained most of her previous personality when around Sathya. Fishcake particularly liked Sathya and went to live with her after the Stalker Fang was destroyed.


A die hard Anti-Tractionist, Sathya is at first highly untrusting of Tom and Hester, and is highly protective of Anna. She hates traction cities and often urges Anna to be aggressive rather than stop and think at times.

Despite being a little bit hot-headed, she is a good companion to Anna Fang and eventually gets along with Tom and Hester.