turned to ash 划分为宾补或后置定语的依据

Imagine their dismay when they found a beautifully-cooked wallet and notes turned to ash!

状语从句：when they found a beautifully-cooked wallet and notes turned to ash!

书上的划分是：they主；found谓; a beautifully-cooked wallet and notes宾语；turned to ash（notes的宾补）

问题：turned to ash 能剖析为 notes的后置定语吗？ 能讲解下划分为宾补或后置定语的依据吗？

这是新定义的课文中的句子。turned to ash应该是过去分词短语作notes的定语。a beautifully-cooked wallet 并没烧成灰，烧成灰的只不过钱包里的钞票。所以，turned to ash既不可能是宾补，也不可能是谓语。found后接二个名词词组作宾语。