"Mas is a hyperobservant, methodical sleuth-a blend of Columbo and Hercule Poirot-but what makes this award-winning series shine is the way Hirahara takes readers inside her character's head. A winner."
- Booklist

"Hirahara has crafted a pitch-perfect blend of mystery with threads of history... a pleasingly multi-layered mystery that is both entertaining and thought-provoking."
- Craig Sisterson, Crime Watch

"In a genre in which unusual amateur sleuths are the norm, Mas Arai is in a class by himself."
- Oline Cogdill, Florida Sun-Sentinel and many other Tribune newspapers

"Hirahara would seem to be telling the quiet story of a coming home, but it's also a metaphorical ghost story - the ghost images of the Japan Mas remembers, the atomic bomb and its far-reaching shadow, Mas's dead friend, and a young boy whose body Mas discovers during his visit. The subsequent investigation launches a compelling plot, but the heart of the book, where it transcends its genre, is Hirahara's moving exploration of the ways people are haunted."
- The Los Angeles Daily News, which included Hiroshima Boy in their list of "5 Wonderful New Books for Southern California Readers"

"I've always admired Naomi Hirahara's Mas Arai. A brilliant, unique addition to mystery fiction from the very beginning, his character has straddled time, place, and culture, with roots in one of the most terrible acts of violence war has ever inflicted upon humanity....I am sure readers will come to love Mas for years to come-he is one of a kind."
- Jacqueline Winspear, author of the New York Times-bestselling Maisie Dobbs mysteries