[Sidenote: Miraculous descent on the island of Dârîn.] The discomfited force fled, and, taking ship, found refuge in Dârîn, one of the numerous islets a little way off from the mainland, and the seat of a Nestorian bishopric.[68] Thither they were pursued by Alâ, and here again we are told of a miraculous interposition. No boats or means of transport were anywhere at hand. Raising, therefore, a wild invocation to the Lord of Hosts for help, the Moslems rushed into the sea and crossed the strait as it had been a shallow sandy beach. The enemy, taken by surprise on their island, were put utterly to the sword, so that not one escaped to tell the tale. A pious bard has likened the passage to that of the Israelites through the Red Sea, and a monk is said to have been converted by the double miracle of waters breaking out in the wilderness, and waters drying up in the channel of the great deep. The spoil was prodigious,[69] and multitudes of women and children were taken captive. [Sidenote: Bahrein reclaimed by Alâ.] While thus engaged, Alâ received material help from loyal followers along the coast. They secured the wavering, protected the rear from surprise, and overawed unruly tribes ever ready for plunder and rapine. Thus the whole region of Hejer, reclaimed to the faith, fell peaceably under the government of Alâ.[70] [Sidenote: Mothanna.]Amongst those who aided in this work was Mothanna, a chief of great influence over the Bekr clans, from one of which he sprang.[71] Following up the victory of Alâ along the coast, this warrior in his progress northward reached at last the delta of the Euphrates, where he inaugurated a movement that was of lasting importance and which will shortly engage our attention.