Next morning at breakfast, a courier from Dumouriez arrived with a note for Miaczinsky. After reading the message, the General showed it to St. Georges and his officers. According to the note, Dumouriez, having arrested the delegation, was ordering Miaczinsky to take Lille with his division and join him in his march on Paris to "uphold the 'will of the army', to reinstate the constitution of 1791 and to save the Queen." When Miaczinsky asked St. Georges to assist him on his march on Lille, St. Georges refused, saying that "being under orders to his commander, General Duval, nothing on earth could force me to fail in my duties." This was the moment when Saint-Georges, the son of a slave, chose the Revolution over his doomed Queen and the society that nurtured him. Accompanied by Lieutenant Colonel Dumas and Captain Colin, he took off at a gallop to warn Lille of the looming danger. Having warned the garrison in time, when Miaczinsky arrived he was arrested by Duval. Taken to Paris he was tried, found guilty and guillotined. General Dumouriez, his plans thwarted by "the famous mulatto Saint-Georges, colonel of a regiment of hussars ..." together with Louis-Philippe, son of the Duke of Orléans and future king of France, defected to the Austrians.