where he was not again disturbed. Serras soon after was drawn away to the north-east by the demands of Bonnet, whose communications with Santander had once more been cut by Porlier’s roving Asturian bands. He called on his colleague to attack this partisan force in the rear, and while Serras was hunting it at Potes and Alba, in the Cantabrian Hills, Northern Portugal and Galicia were left undisturbed in September[314]. [314] For a narrative of these obscure campaigns see Schaller’s _Souvenirs d’un officier Fribourgeois_, pp. 29-37. While glancing at the subsidiary operations in this remote corner of Spain, it may be worth while to note, as a proof of the slight hold which Bonnet and Serras possessed on their allotted districts, that on June 7 Mahy threatened Astorga, while the Asturian bands of Colonel Barcena, eluding Bonnet, came down into the plains by the Pass of Pajares and surprised Leon[315]. They got into the town by escalade at night, held it for two days, and only evacuated it when Serras came up in strength on June 9. Provoked at this bold adventure, Bonnet made his last attempt to conquer Western Asturias, and so to destroy the indefatigable and evasive partisans in his front. He forced his way across the Narcea and the Navia, and his vanguard had reached Castropol, on the Galician border, upon July 5, when he heard to his disgust that the enemy had slipped behind him. Barcena was threatening his base at Oviedo, while Porlier’s band, carried round by English ships, had landed near Llanes and cut the communication with Santander. These clever moves brought Bonnet back in haste: he evacuated Western Asturias, called up Serras to his aid, and was engaged in August and September in the hunt after Porlier which we have already mentioned[316]. [315] See ibid., pp. 32-3. [316] For a narrative of these interesting but obscure movements, see Schepeler, iii. 596-9. It is impossible to give a full account of them here, but necessary to mention them, to show the Sisyphean character of Bonnet’s task.