The Devotion of Suspect X
 The Devotion of Suspect X (容疑者Xの献身 Yōgisha Ekkusu no Kenshin) is a 2005 novel by Keigo Higashino the third in his Detective Galileo series and is his most acclaimed work thus far. The novel won him numerous awards including the 134th Naoki Prize which is a highly regarded award in Japan. The novel also won the 6th Honkaku Mystery Grand Prize which is one of the most prestigious awards in the mystery novels category in Japan.