55 Amm. xv 5.30. The reasoning that the phrase in hoc aestu mentis ancipiti refers to Silvanus is superficial. It refers to the distress caused to Ursicinus and Ammianus by the attitude of the troops. The context makes this clear, xv 5.28 refers entirely to Silvanus. xv 5.29 gives the reaction of Ursicinus and Ammianus to the behaviour of the soldiers, xv 5.30 again refers to Ursicinus and Ammianus. Silvanus has not been mentioned for two sections. Therefore, on context alone, the phrase must refer to the imperial agents. Then, grammatically, the phrase must relate to the subject of the sentence, which is the we of scrutabimus, namely, Ursicinus and Ammianus. That the phrase refers to them is reinforced by the reference, in the same section, to mutatis prac timore saepe sententiis.