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The House Without A Key (ShandonPress) by Earl Derr Biggers
This is the first in the Charlie Chan series of mystery novels. It which takes place in 1920s Hawaiʻi, spends time acquainting the reader with the look and feel of the islands of that era from the standpoint of both white and non-white inhabitants, and describes social class structures and customs which have largely vanished in the 21st century. The novel deals with the murder of a former member of Boston society who has lived in Hawaiʻi for a number of years. The main character is the victim's nephew, a straitlaced young Bostonian bond trader, who came to the islands to try to convince his aunt Minerva, whose vacation has extended many months, to return to Boston.
https://www.amazon.com/dp/B01LXOBR1D/
https://www.amazon.co.uk/dp/B01LXOBR1D/
https://www.amazon.ca/dp/B01LXOBR1D/
The Chinese Parrot (ShandonPress) by Earl Derr Biggers
The Chinese Parrot (1926) is the second novel in the Charlie Chan series of mystery novels by Earl Derr Biggers. It is the first in which Chan travels from Hawaii to mainland California, and involves a crime whose exposure is hastened by the death of a parrot. The story concerns a valuable string of pearls which is purchased by a wealthy and eccentric financier.
https://www.amazon.com/dp/B01LX0UMBQ/
https://www.amazon.co.uk/dp/B01LX0UMBQ/
https://www.amazon.ca/dp/B01LX0UMBQ/