Complex sentence: The Examiner reveals to Scrubby that she is Prior's mother; she gave him up at birth, and, guilt-ridden that he grew up orphaned, she says that to be reunited with her son is her Heaven.
Split into simpler sentences: The Examiner reveals to Scrubby that she is Prior's mother. She gave him up at birth and had been guilt-ridden over it; being reunited with her son is her Heaven.