'That was two years ago,' Helen Stoner said. 'I have
been very lonely without my sister, but a month ago a
dear friend asked me to marry him. My stepfather has
agreed, and so we're going to marry soon. But two
days ago I had to move to my sister's old bedroom,
because some men are mending my bedroom wall, and
last night I heard that whistle again! I ran out of the
house immediately and came to London to ask for
your help. Please help me, Mr Holmes! I don't want to die like Julia!'