Elsie, moved by great compassion for him upon learning the cure for his illness, offers herself in sacrifice, despite her mother's misgivings. Elsie hopes that by giving her life for Henry, she will become closer to Christ. Elsie and Henry set out for Salerno. Scene three has Elsie and Henry travelling to Salerno, although Henry is disturbed by the fate that awaits Elsie. They pass a band of pilgrims, which is joined by a friar who is really Lucifer in disguise. Lucifer gloats over Elsie's fate, and Elsie and Henry find comfort in each other. The couple arrive in Salerno in scene four, where Lucifer reappears disguised as Friar Angelo, a doctor of the medical school. Despite the opposition of the Prince, who now declares that he intended to do no more than test her constancy, Elsie persists in her resolve to die for him. Lucifer plans to claim Elsie's soul for his own rather than let it rise to Heaven. He draws Elsie into an inner chamber, but at the last minute, Henry breaks down the door and rescues her from the "doctor" and eternal damnation. In the fifth scene, a forester brings the news to an anxious Ursula that her daughter is not dead. Miraculously healed, Prince Henry marries Elsie and is restored to his rightful place. The final scene finds Henry and Elsie on the evening of their wedding day. An epilogue provides the moral and explains that Prince Henry's malady was cured by love. Elsie's devotion is compared to the course of a mountain brook that cools and fertilises the arid plain. Musical numbers Prologue Nocte surgentes (Hasten, hasten) – Lucifer and Chorus Scene 1 I cannot sleep – Henry All hail, Prince Henry – Lucifer and Henry Behold it here – Lucifer, Henry and Chorus Drink, drink, and thy soul shall sink – Lucifer, Henry and Chorus Scene 2 Slowly, slowly up the wall – Ursula Evening Hymn – Chorus and Henry Who was it said 'Amen'? – Ursula and Elsie I heard Him call – Elsie and Ursula My Redeemer and my Lord – Elsie My life is little – Elsie, Henry and Chorus Scene 3 Onward and onward – Elsie, Henry and Chorus Here am I too – Lucifer, Elsie and Chorus It is the sea – Henry The night is calm and cloudless – Elsie and Chorus Scene 4 My guests approach