Old London Bridge was not what we should now call an imposing structure, but our ancestors of nine centuries back esteemed it quite a bridge. The chronicler says that it was "so broad that two wagons could pass each other upon it," and "under the bridge were piles driven into the bottom of the river." So young Olaf and old Rane put their heads together, and decided to wreck the bridge by a bold viking stroke. And this is how it is told in the "Heimskringla," or Saga of King Olaf the Saint: "King Olaf ordered great platforms of floating wood to be tied together with hazel bands, and for this he took down old houses; and with these, as a roof, he covered over his ships so widely that it reached over the ships' sides. Under this screen he set pillars, so high and stout that there both was room for swinging their swords, and the roofs were strong enough to withstand the stones cast down upon them." "Now, out oars and pull for the bridge," young Olaf commanded; and the roofed-over war-ships were rowed close up to London Bridge. And as they came near the bridge, the chronicle says: "There were cast upon them, by the Danes upon the bridge, so many stones and missile weapons, such as arrows and spears, that neither helmet nor shield could hold out against it; and the ships themselves were so greatly damaged that many retreated out of it." But the boy viking and his Norsemen were there for a purpose, and were not to be driven back by stones or spears or arrows. Straight ahead they rowed, "quite up under the bridge." "Out cables, all, and lay them around the piles," the young sea-king shouted; and the half-naked rowers, unshipping their oars, reached out under the roofs and passed the stout cables twice around the wooden supports of the bridge. The loose end was made fast at the stern of each vessel, and then, turning and heading down stream, King Olaf's twenty stout war-ships waited his word: "Out oars!" he cried; "pull, war-birds! Pull all, as if ye were for Norway!" Forward and backward swayed the stout Norse rowers; tighter and tighter pulled the cables; fast down upon the straining war-ships rained the Danish spears and stones; but the wooden piles under the great bridge were loosened by the steady tug of the cables, and soon with a sudden spurt the Norse war-ships darted down the river, while the slackened cables towed astern the captured piles of London Bridge. A great shout went up from the besiegers, and "now," says the chronicle, "as the armed troops stood thick upon the bridge, and there were likewise many heaps of stones and other weapons upon it, the bridge gave way; and a great part of the men upon it fell into the river, and all the others fled--some into the castle, some into Southwark." And before King Ethelred, "the Unready, "could pull his ships to the attack, young Olaf's fighting-men had sprung ashore, and, storming the Southwark earthworks, carried all before them, and the battle of London Bridge was won.