saw that he was frowning, his eyes fixed on the river ahead. "What's wrong?" Sophia asked, feeling a twinge of concern. "I don't know," Marcus replied, his voice low. "But I think we're being f

ept pace with them, their boat equally maneuverable. Sophia knew that they couldn't keep this up for much longer. They needed a plan, and fast. "Marcus, we need to lose them," Sophia shouted above the roar of the engine. Marcus nodded, his eyes scanning the river ahead. "I see a tributary up ahead," he shouted back. "If we can make it there, we might be able to shake them." Sophia's heart was racing as they approache