Morning came, and with it the discovery of the murder, which could not be concealed; and though Macbeth and his lady made great show of grief, and the proofs against the grooms (the dagger being produced against them and their faces smeared with blood) were sufficiently strong, yet the entire suspicion fell upon Macbeth, whose inducements to such a deed were so much more forcible than such poor silly grooms could be supposed to have; and Duncan's two sons fled. Malcolm, the eldest, sought for refuge in the English court; and the youngest, Donalbain, made his escape to Ireland. The king's sons, who should have succeeded him, having thus vacated the throne, Macbeth as next heir was crowned king, and thus the prediction of the weird sisters was literally accomplished. Though placed so high, Macbeth and his queen could not forget the prophecy of the weird sisters, that, though Macbeth should be king, yet not his children, but the children of Banquo, should be kings after him. The thought of this, and that they had defiled their hands with blood, and done so great crimes, only to place the posterity of Banquo upon the throne, so rankled within them, that they determined to put to death both Banquo and his son, to make void the predictions of the weird sisters, which in their own case had been so remarkably brought to pass. For this purpose they made a great supper, to which they invited all the chief thanes; and, among the rest, with marks of particular respect, Banquo and his son Fleance were invited. The way by which Banquo was to pass to the palace at night was beset by murderers appointed by Macbeth, who stabbed Banquo; but in the scuffle Fleance escaped. From that Fleance descended a race of monarchs who afterwards filled the Scottish throne, ending with James the Sixth of Scotland and the First of England, under whom the two crowns of England and Scotland were united.