The following day, Papagiannakis, a former deputy in the Cretan Assembly, and Konstantinos Manos, communicated to the consuls of the Great Powers, on behalf of the rebels, the reasons that had led to the revolt. They mentioned the transitional character of the present government and the eventual desire to join Greece, and cited the political instability which prevented foreign investment and hindered the island's development. Finally, they mentioned the growing general discontent because of the government's "nearly absolutist" nature.
The Triumvirate of the revolt: Foumis, Venizelos and Manos at Theriso in 1905

From Theriso, Venizelos organised a provisional government that printed its own postage stamps and newspaper. Papagiananakis was elected president of the insurrection's assembly and was assisted by four vice-presidents. A revolutionary triumvirate emerged: Konstantinos Foumis, a childhood friend of Venizelos' and former High Court prosecutor, as well as a member of parliament and former minister, was assigned charge of finances; Konstantinos Manos, the former mayor of Chania, handled the military aspect and held the post of general secretary; Venizelos covered the political and organisational side. A certain Emmanouil Papaderos was responsible for maintaining the camp.

The opposition decided not to take part in the elections scheduled for 24 March 1905 that would choose 64 Cretan deputies (in addition to the ten directly named by Prince George). The Theriso insurgents called for a boycott of the elections and for an armed struggle against the regime.

The new assembly, which met on 20 April at Chania, was opened through a speech by Prince George on the economy and planned reforms. However, as soon as he left the chamber, the assembly voted in favour of Enosis. In the assembly hall, entirely decorated with Greek flags, the deputies proclaimed the union of Crete with the Greek mother country and placed it under the control of King George I. They then informed the consuls of the Great Powers at Chania of this resolution.

On 31 May, at the end of the parliamentary session, most of the deputies joined the Theriso Assembly. A month later, two of the prince's chief counselors, Kriaris and Koundouros (the finance minister), resigned their posts and joined their former colleague in the mountains.