This was a pretty decent read for a younger reader, but perhaps a bit immature and bland for a middle-grader or older. There's very little in it for the adult reader, but since it's not aimed at an adult audience I can't fault it for that, so I consider it a worthy read for the intended audience.
After the attack on Pearl Harbor on December 7th 1941, a date which will live in infamy according to then president Roosevelt, he signed an exec order which brought infamy to the US, and shamefully so. The order eventually resulted in over a hundred thousand Japanese Americans being forced into internment camps. Curiously, in Hawaii, where many more Japanese Americans lived, little more than a tenth of those people were also interned. The man who was charged with accomplishing this, John DeWitt, the Army general in command of the coast, is portrayed as a decent person in this story but in reality, his inflammatory racist view was "A Jap's a Jap. They are a dangerous element, whether loyal or not."
The fact that this was indeed pure racism is proved by the fact that there was no large-scale wholesale incarceration of residents of German or Italian ancestry. It was America once again over-reacting to a bad and embarrassing defeat, taking the ball and going home. Meanwhile, in Japan there were over 2,000 civilians of allied nations. These people were also interned and very little (to my knowledge) has been written about them and very little is ever heard of their experiences. Bernice Archer has written a book about it, The Internment of Western Civilians Under the Japanese published in 2004. The Japanese treated Japanese Americans as Japanese Nationals, although American citizens of Japanese ancestry were urged to return to the US.
In this story, young Mitsi Kashino and her family are transported to an isolated camp, but she must leave behind her pet dog, Dash. The story, as I said, is a bit tame and bland, which given the audience for which it was written is understandable in some ways, but not in others, since this was written as recently as 2014. I think kids can handle more truth than the author does, evidently. It fails in that it does not give any real feeling of the horror or even of the foul injustice of these events, which is why I think it's suitable for a younger audience. I think older children will need more than this offers, but I consider it a worthy read for the young.