Final answer:
Helen has come to Holmes in such a rush because she is afraid for her life and her twin sister's life. She seeks his help and protection from a potential threat or danger.
Step-by-step explanation:
Helen has come to Holmes in such a rush because she is afraid for her life and her twin sister's life. She seeks his help and protection from a potential threat or danger. This urgency is evident from her statement that she wants to help Holmes along with Judkins to solve a problem.