Salvation of a Saint by Keigo Higashino is the second book of the Detective Galileo series, the first being the hugely popular Devotion of Suspect X (see my review here)
The series revolves around Inspector Shunpei Kusanagi and his friend, Manabu Yukawa, a physics professor who, occasionally, helps Kusanagi solve some of his most challenging cases, and is known as the Galileo detective. Continue reading