The princes switch places, and Prince Juan is sent back to the forest to be cured by the Ibong Adarna's song. Meanwhile, Prince Pedro takes his brother's place in the kingdom.
Don Juan manages to catch the Ibong Adarna and plucks seven feathers from its back. The feathers are said to have the power to cure Don Pedro's illness. However, the bird escapes, and Don Juan returns to Berbania with the feathers.
Ang hari ng Berbanya, si Haring Fernando, ay nagkasakit ng malubha. Isang manggagamot ang nagsabi na ang tanging lunas ay ang awit ng mahiwagang Ibong Adarna na matatagpuan sa Bundok Tabor. Unang ipinatawag niya ang panganay na si Don Pedro upang hanapin ang ibon.