Complex sentence: Elena and Nate follow Lazarević's convoy to an abandoned monastery where they locate a mortally wounded Schäfer, who dies after telling Nate to destroy the Cintamani Stone before Lazarević can obtain its power.
Split into simpler sentences: Elena and Nate follow Lazarević's convoy to an abandoned monastery where they locate him mortally wounded. Schäfer dies, after warning Nate to destroy the Cintamani Stone before Lazarević can obtain its power.