" Labienus first tried, under cover of a line of mantlets, to make a causeway across the marsh on a foundation of fascines and other material. Finding this too difficult, he silently quitted his camp some time after midnight and retraced his steps to Metlosedum, a town of the Senones situated like Lutetia on an island in the river. He seized some fifty boats, quickly lashed them together to form a bridge, and sent troops across to the island. "

― Gaius Julius Caesar , The Conquest of Gaul