Although the plot is relatively simple, the progression of the mystery is well done. Runholt incorporates a lot of the surroundings of London and Amsterdam, and it’s obvious the author has spent considerable time in those places. Kari and Lucas have to act to pursue the mystery rather than just hanging around waiting for it to unravel itself.
One of the most charming things about the novel is Kari’s first-person narrative. The words read so easily, and Kari’s thinking and attitude come alive on the page. Runholt has a second mystery in the series coming out, Rescuing Seneca Crane, with more coming. School librarians and parents wanting non-threatening kid-lit for mystery lovers would do well to pick up this series.