Musk and Amber — A.E.W. Mason

Julian Linchcombe is the remarkable heir to the Earl of Linchcombe's estate and he has the voice of an angel. When he is taken to the festival of San Januerius in Italy to witness a miracle, his uncle arranges for him to go sailing with a local fisherman. But Julian is soon lured into running away. A massive search goes underway to find the missing boy until eventually a body turns up broken and tangled in a fishing net. A sinister plot is uncovered involving fraud, kidnap and murder. Has Julian been stolen away for his voice? And who is dead?