Black%20Beauty%20is%20the%20classic%20horse%20story%2C%20a%20beautiful%20and%20touching%20tale%20told%20by%20the%20title%20character%20himself.%20Set%20in%20Victorian%20London%2C%20it%20follows%20Black%20Beauty’s%20life%20and%20changing%20fortunes%20as%20he%20moves%20from%20owner%20to%20owner.%20As%20the%20horse%20encounters%20new%20experiences%20and%20new%20friends%20who%20reveal%20their%20own%20histories%2C%20the%20story%20quietly%20paints%20a%20fascinating%20portrait%20of%20how%20animals%20were%20treated%20during%20that%20era.