One o'clock
However , only two guests now remained . Pierre had gone in search of a cab . Helene remained the last . One o'clock struck . Henri , no longer standing on ceremony , rose on tiptoe and blew out two candles in the chandelier which were dangerously heating their crystal sconces . As the lights died out one by one , it seemed like a bedroom scene , the gloom of an alcove spreading over all . `` I am keeping you up ! ''