Elizabeth has received a letter from an old colleague, a man with whom she has a long history. He is being hunted, and he needs her help. His story involves stolen diamond, a violent mobster and a very big mistake.
"When the impossible has been eliminated the residuum, however improbable, must contain the truth."
Salva, sering disapa Ava. Namun, Papanya ingin menamainya Saliva, yang berarti ludah, sebab menganggapnya tidak berguna. Dari kamus pemberian Kakek Kia, Ava mencari setiap makna dari kata-kata yang ditemukan sehari-hari. Ketika keluarga Ava pindah ke Rusun Nero setelah Kakek Kia meninggal, Ava berjumpa dengan P—anak lelaki yang pandai sekali bermain gitar. Perjumpaan Ava dengan P, dan petuala…