Salvation of a Saint (聖女の救済, Seijo no Kyūsai) is a 2008 novel by Keigo Higashino, the second in his Detective Galileo series.

[2] The husband of famous patchwork quilter Ayane Mita is found dead while she is away on a trip to visit her parents at Sapporo.

All suspicion falls on Hiromi as she was the last person to see Yoshitaka alive and has no alibi to suggest otherwise.

However, the question still remained: how would she succeed in poisoning her husband's coffee while she was physically so far away from him, at Sapporo?

The plot widens as Utsumi consults Kusanagi's old friend, Manabu Yukawa (also known as Detective Galileo), a physics professor with a keen eye for detail.