2B
   [Magic Tree House #9 ]Dolphins at Daybreak
   Mary Pope Osborne
   Random House [ 언어세상 ]
   Paperback
   68
   5200
잭과 애니가 바다 한 가운데에 떨어지게 되었다구요?! 하지만 다행히 해초 위에 떠 있는 미니 잠수함을 발견하게 됩니다. 그런데 무시무시하게 커다란 문어와 배고픈 상어가 또 그들을 기다리고 있네요! 과연 그들의 운명은 어떻게 될지..