Up to this time Mazzini had been inclined to postpone insurrection, till, at all events in his own judgment, it had a fair prospect of success. Unluckily at this moment he was approached by a revolutionary society among the artisans at Milan. He was hesitating whether to encourage them to action, when the ruthless execution by the Austrians of some conspirators at Mantua maddened the men, and they decided on revolt whether he supported them or not. He was very anxious about the scheme and far from hopeful, but he was too generous and impatient to refuse help now. He did what he could to find them money and sympathisers, and late in 1852 he went in disguise to Locarno to complete the preparations. The rising was fixed for the Carnival on February 6, and on the eve of it Mazzini was on the frontier at Chiasso, ready to go on to Milan, as soon as the call came. Had the rising been better organized, it had some small chance of success. As it was, Mazzini learnt at Chiasso that it had smoked itself out in a confused and bloody scuffle. The business was disastrous to him, and he came out with reputation badly damaged. The responsibility was fixed on him, and he accepted it, though he had only been drawn into a plan that others made. His friends in Italy had published a two-years-old appeal from Kossuth urging the Hungarian regiments in the garrison to revolt, and whether or not Kossuth authorized its publication now, had made unjustifiable alterations in the wording. Mazzini was responsible, if at all, only in not taking precautions to prevent the issue, but he did not make matters better, when he pleaded that men, who were risking their lives for their country, were "not amenable by strictly punctilious rules of normal times."[24] The fatuousness and mismanagement of the whole business, the pity of the wasted lives, a feeling that these ill-judged risings hindered the cause and damaged it in the eyes of Europe, hastened the stampede from his own party. He still kept a considerable though reduced hold on the artisans in a few towns of the North, but among the middle classes his following shrank to nearly nothing.

Even he almost despaired. He felt himself "accursed by all," the "scapegoat on whom all the faults of Israel will be heaped with a curse." The Piedmontese press loaded him with shameful scurrility; and there seems to have been an attempt to assassinate him. He fretted with the sense of failure, with something like remorse at the sufferings of the conspirators under the Austrians' brutal vengeance. But instead of taking the moral of the failure home, he broke into invective against the Piedmontese, and only plunged more desperately into schemes of insurrection. He had been misled into suspecting an understanding between France and Piedmont to create French protectorates in the South and Centre; and he was eager to checkmate it by forcing on the movement for unity and a revolutionary war with Austria. He had two main plans of operation. For one, the revolutionising of South Italy, he could, though anxious for immediate action, at present only sow the seed. The other was to organise guerilla fighting in the Alps and Northern Apennines and encourage the Lombard cities to revolt. He had persuaded himself that the fast-maturing Eastern question gave a favourable chance of attacking Austria. Her policy of see-saw between the Western Powers and Russia had won her the ill-will of both sides, and she had been obliged to denude her Italian garrisons to concentrate troops on the Russian frontier. Mazzini had vague hopes, too, of help from America. Kossuth's lecturing tour in the States in 1852 had excited an angry feeling against Austria. The American government was irritated by the unfriendly attitude of France and England, and perhaps had its designs on Cuba; and Mazzini hoped that it would encourage the revolutionary forces in Europe, in order to keep the Powers occupied at home. George N. Sanders, the American Consul in London, gave a dinner to him and Kossuth and Ledru Rollin, and healths were drunk to a future alliance of America with a federation of the free peoples of Europe.[25] Mazzini's hopes were high. He studied military maps with Kossuth and Ledru Rollin at St John's Wood. He went to Paris and Italy in 1854 in disguise, probably spending most of his time at Genoa, and perhaps on his way paying a visit to Giuditta Sidoli, now silver-haired, and sweet and gracious as ever. His movements worried all the police of Italy and France and Switzerland, and his secret journeys had their romance of clever disguises and audacious escapes. A popular rhyme of the time, attributed to Dall'Ongaro, said:—

Where is Mazzini? Ask the pines

Upon the Alps and Apennines.

He is, wherever traitors cower

In terror for their fatal hour;

Where'er men wait impatiently

To give their blood for Italy.

Mazzini wrote home to England that the people were fretting for action, and would have risen already, "had he not been exceptionally prudent and calm"; in two months more he hoped to have sapped the influence of the royalists, and then "the field will be mine." In August he was in the Engadin, arranging for insurrection in the Valtellin and the Como hill country. But the Swiss police broke up the conspirators, and Mazzini narrowly escaped capture as he came by the Julier diligence to Chur.

His hopes of Austrian isolation were soon dashed. Austria nominally joined the Western alliance, and Piedmont followed her into it and sent a contingent to the Crimea. He was bitterly disappointed, and relieved himself in angry criticisms on English and Piedmontese policy. Against Piedmont he turned with sheer passionate bitterness. Cavour's adhesion to the alliance puzzled his own followers; and even now it is not easy to be sure as to its wisdom, still less as to its morality. But at all events everyone else recognised that the Crimea was intended to be "the road to Lombardy." Mazzini, blinded by his partisanship, saw only proof that Cavour's sympathies were more with the oppressors than the oppressed.