The plot detail from "Romeo and Juliet", Act II, Scene III that adds to the suspenseful mood is Benvolio and Mercutio cannot find Romeo. Romeo has been with Friar Lawrence telling him he wants to marry Juliet. Friar Lawrence agrees to marry them. Benvolio and Mercutio are trying to find Romeo who has not slept at home. They both know that Tybalt has sent a letter to Romeo challenging him to a duel.