Sulari Gentill
Rowland Sinclair, a young artist and gentleman from a wealthy family, and reluctant amateur sleuth, in 1930s Sydney, New South Wales, Australia:

A Few Right Thinking Men (2010)

A Decline in Prophets (2011)

Miles off Course (2012) [ebook]

Paving the New Road (2012) [ebook]

Gentlemen Formerly Dressed (2013) [ebook]

Murder Unmentioned (2014)
Finalist 2015 Ned Kelly Award for Best Crime Novel

YA hero-adventure trilogy, written as S.D. Gentill:

Chasing Odysseus (2011) [YA]