A FRIEND BECOMES AN ENEMY.—MEDITATIONS ON THE ANCIENT AND VENERABLE FABLE OF THE DOG IN THE MANGER.—THE CORRUPTION OF THE HUMAN HEART. —CONSIDERATION OF THE WHOLE SITUATION.—ATTEMPTS TO COUNTERMINE JACK, AND FINAL RESOLVE.TREMENDOUS EXCITEMENT.—THE HOUR APPROACHES, AND WITH IT THE MAN.—THE LADY OF THE ICE.—A TUMULTUOUS MEETING.—OUTPOURING OF TENDER EMOTIONS.—AGITATION OF THE LADY.—A SUDDEN INTERRUPTION.—AN INJURED MAN, AN AWFUL, FEARFUL, DIREFUL, AND UTTERLY-CRUSHING REVELATION.—WHO IS THE LADY OF THE ICE?CHAPTER XXIV.