Complex sentence: In the boys'bedroom, there is a picture of Aunt Lucinda, Arthur's daughter, as a little girl, and they learn that she was taken to an asylum when she claimed her father was kidnapped by fairies.
Split into simpler sentences: In the boys'bedroom, there is a picture of Aunt Lucinda, Arthur's daughter, as a little girl. She was taken to an asylum when she claimed her father was kidnapped by fairies.