Halo Round the Moon — Steve Turnbull

Pneumatic trains, steampunk air-planes, karmic sex and bloody murder in 1908 India.

When the heir to an industrial empire suffers a fatal accident, Maliha Anderson is called in to determine whether darker forces are at work.

What she discovers goes deeper than any crime she's ever investigated. She is forced into intimate contact with the suppressed passions of post-Victorian society and goes far beyond the bounds of what's proper and decent, to bring the murderer to justice.