Sirius is Thomas Trelone?s great experiment - a huge, handsome dog with the brain and intelligence of a human being. Raised and educated in Trelone?s own family alongside Play, his youngest daughter, Sirius is a truly remarkable and gifted creature. His relationship with the Real ones, particularly with Play, is deep and close, and his inquiring mind ranges across the spectrum of human knowledge and experience. But Sirius isn?t human and the conflicts and inner turmoil that torture him cannot be resolved.