The excitement reaches its 'crescendo' [='climax', 'peak'] when he comes on stage.
The noise rose to a 'crescendo'.
(..) Psychotic. I should've brought you a sedative. I'll give my life to see his demise. He must be stopped... Before his evil machinations, Come to a crescendo. And how will you do all this? No one... Not the victims, The police, The governments... Not anyone! Except the great Sherlock Holmes. (..)2011 Sherlock Holmes: A Game of Shadows