Boy Scouts in the North SeaIntroductory materialReading editionChapter navigation25 reading sectionsGo to chapterChoose a chapter…Front matterIntroductory materialChapter I · A PACKAGE VANISHESChapter II · DIFFICULTIES AND DANGERSChapter III · THE MAN WITH THE SCARChapter IV · THE LENA KNOBLOCHChapter V · TWO MYSTERIOUS CHANGESChapter VI · A DIFFICULT DEPARTUREChapter VII · A WARNING FROM THE SEAChapter VIII · MORE ABOUT THE “U-13”Chapter IX · A STRANGE VISITChapter X · SHIPWRECK AND RESCUEChapter XI · A FLEET OF SUBMARINESChapter XII · A NEW “U-13” APPEARSChapter XIII · A THREATENING SITUATIONChapter XIV · HELPED BY AN ENEMYChapter XV · MISTAKEN IDENTITYChapter XVI · A STRANGE DISCOVERYChapter XVII · ALONE AND HELPLESSChapter XVIII · HELP FROM A STRANGERChapter XIX · MACKINDER AGAINChapter XX · A MYSTERIOUS CRAFTChapter XXI · A MYSTERY EXPLAINEDChapter XXII · MORE MYSTERYChapter XXIII · THE MYSTERY OF THE “U-13”Previous chapter ←Front matterNext chapter →Chapter I · A PACKAGE VANISHESAll chapters and sections (25)Opening pagesFront matterIntroductory materialChapters1234567891011121314151617181920212223Boy Scouts in the North Sea; or, The Mystery of “U-13”← Front matterCHAPTER I A PACKAGE VANISHES →