In 151 BC the new consul, Lucius Licinius Lucullus, was assigned Hispania. While he was on his way, Marcellus told the Celtiberians about the impending war and returned the hostages. He had a long conversation with the chief of the embassy which had gone to Rome. He sought to persuade the Celtiberians to put matters in his hands because he wanted to bring the war to an end before the arrival of Lucullus. After this 5,000 Arevaci took possession of the city of Nertobriga and Marcellus encamped near Numantia. While he was driving the inhabitants inside the wall, their leader asked for a meeting with Marcellus. He said that the Arevaci, Belli and Titti would put themselves in his hands. He demanded and received hostages and money and let them go free, thereby ending the war before Lucullus could relieve him.