Human trafficking is the latest crime to be investigated by Hunter Grant, the ex-army reluctant detective created by Swedish-Kiwi writer Tina Clough.
Folded is the third outing for Hunter and his partner Dao, after The Chinese Proverb and One Single Thing.
This time they are drawn into the new case after a passerby discovers folded origami notes containing pleas for help.
Lynn Freeman asks Tina about the appeal of a series with the same characters.
Folded by Tina Clough is published by Lightpool.