Italian La pista di sabbia) is a 2007 novel by Andrea Camilleri, translated into English in 2010 by Stephen Sartarelli.
It is the twelfth novel in the internationally popular Inspector Montalbano series.
The Sicilian inspector looks out his window and sees the carcass of a horse on the beach.
As he turns his back to phone in the crime, the horse vanishes, leaving a track in the sand.
The repeated vandalizing of Montalbano's home and a Mafia thug's murder complicate the investigation.