Appian of Alexandria Civil Wars 2.16.116

[116] While Caesar was being borne to the Senate one of his intimates, who had learned of the conspiracy, ran to his house to tell what he knew. When he arrived there and found only Calpurnia he merely said that he wanted to speak to Caesar about urgent business, and then waited for him to come back from the Senate, because he did not know all the particulars of the affair. Meantime Artemidorus, whose hospitality Caesar had enjoyed at Cnidus, ran to the Senate and found him already murdered. A tablet informing him of the conspiracy was put into Caesar’s hand by another person while he was sacrificing in front of the curia, but he went in immediately and it was found in his hand after his death. Directly after he stepped out of the litter Popillius Laena, who a little before had joined his prayers with the party of Cassius, accosted Caesar and engaged him aside in earnest conversation. The sight of this proceeding and especially the length of the conversation struck terror into the hearts of the conspirators, and they made signs to each other that they would kill themselves rather than be captured. As the conversation was prolonged they saw that Laena did not seem to be revealing anything to Caesar, but rather to be urging some petition. They recovered themselves and when they saw him return thanks to Caesar after the conversation they took new courage. It was the custom of the magistrates, when about to enter the Senate, to take the auspices at the entrance. Here again Caesar’s first victim was without a heart, or, as some say, the beginning of the entrails was wanting. A soothsayer said that this was a sign of death. Caesar, laughing, said that the same thing had happened to him when he was beginning his campaign against Pompeius in Spain. The soothsayer replied that he had been in very great danger then and that now the omen was still more entitled to credence. ¹ So Caesar ordered him to sacrifice again. None of the victims were more propitious; but being ashamed to keep the Senate waiting, and being urged by his enemies in the guise of friends, he went in disregarding the omens. For it was fated that Caesar should meet his doom.