"The Mystery of the Arnold Building" is a fascinating detective story from the famous author Helen M. Persons, which unfolds in an atmosphere of mystery and society of the Victorian era. The main character, a young detective, turns to the investigation of the mysterious disappearance of the owner of the wealthy Arnold Hall. In every corner of the building, secrets are hidden that stimulate the imagination and unravel the intricate intrigues of the past. Will the hero be able to unravel all the threads of this mystery and restore the truth about what happened in Arnold Hall? "The Secret of Arnold's Building" is a book that will grab you from the first lines and won't let you go until the last page.