To this first and most essential error Pyrrhus added a second; he proceeded with his fleet, not to Lilybaeum, but to Tarentum. It was evident, looking to the very ferment in the minds of the Sicilians, that he ought first of all to have dislodged the Carthaginians wholly from the island, and thereby to have cut off the discontented from their last support, before he turned his attention to Italy; in that quarter there was nothing to be lost, for Tarentum was safe enough for him, and the other allies were of little moment now that they had been abandoned. It is conceivable that his soldierly spirit impelled him to wipe off the stain of his not very honourable departure in the year 476 by a brilliant return, and that his heart bled when he heard the complaints of the Lucanians and Samnites. But problems, such as Pyrrhus had proposed to himself, can only be solved by men of iron nature, who are able to control their feelings of compassion and even their sense of honour; and Pyrrhus was not one of these.
The fatal embarkation took place towards the end of 478. On the voyage the new Syracusan fleet had to sustain a sharp engagement with that of Carthage, in which it lost a considerable number of vessels. The departure of the king and the accounts of this first misfortune sufficed for the fall of the Sicilian kingdom. On the arrival of the news all the cities refused to the absent king money and troops; and the brilliant state collapsed even more rapidly than it had arisen, partly because the king had himself undermined in the hearts of his subjects the loyalty and affection on which every commonwealth depends, partly because the people lacked the devotedness to renounce freedom for perhaps but a short term in order to save their nationality. Thus the enterprise of Pyrrhus was wrecked, and the plan of his life was ruined irretrievably; he was thenceforth an adventurer, who felt that he had been great and was so no longer, and who now waged war no longer as a means to an end, but in order to drown thought amidst the reckless excitement of the game and to find, if possible, in the tumult of battle a soldier's death. Arrived on the Italian coast, the king began by an attempt to get possession of Rhegium; but the Campanians repulsed the attack with the aid of the Mamertines, and in the heat of the conflict before the town the king himself was wounded in the act of striking down an officer of the enemy. On the other hand he surprised Locri, whose inhabitants suffered severely for their slaughter of the Epirot garrison, and he plundered the rich treasury of the temple of Persephone there, to replenish his empty exchequer. Thus he arrived at Tarentum, it is said with 20,000 infantry and 3000 cavalry. But these were no longer the experienced veterans of former days, and the Italians no longer hailed them as deliverers; the confidence and hope with which they had received the king five years before were gone; the allies were destitute of money and of men.