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In page Florbela Espanca:

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Espanca's brother died in an airplane accident (some believe he committed suicide, due to his fiancée's death), which deeply affected her. His death inspired the writing of As Máscaras do Destino (The Masks of Destiny).[citation needed] After being diagnosed with pulmonary edema, Espanca starting keeping a diary and twice attempted suicide shortly before the completion of Charneca em Flor.[1][3]