Pursuing the lead

John and Sarah decided to pursue the lead to an abandoned building on the outskirts of town. ‘This place matches the decoded symbol,’ Sarah said, studying the map.
They drove there in separate cars, communicating via radio. ‘Stay sharp,’ John advised. The building looked ominous, with broken windows and overgrown weeds.
As they approached, Max began to growl. ‘He’s onto something,’ John said, tightening his grip on the leash.