Explore the past of the famed beasts from the Firebird Trilogy in Eternal. Kirin is the eldest of the Valentine children and is coming to terms with life's big changes. In Endurance, Kirin and his family must navigate their dark curse. Kirin learns just what the curse means for love and loss. Ethereal catches up to the present with the gang coping with the outcome of Beast. Will everything work for them, or will they break under pressure?