Ban goc (Tiếng Anh)

CONTENTS I.   Planning a Vacation II.   A Member of the Wolf Patrol III.   The Wolf Advises Flight IV.   The Wolf Talks in Code V.   The Wolf in the Bear's Bed VI.   Two Black Bears in Trouble VII.   Signals on the Mountain VIII.   A Strange Disappearance IX.   About the Third Suspect X.   The Wolf Meets a Panther XI.   Black Bear and Diplomat XII.   Wolf and Panther after