The twins ÔEloi and ÔEglantine travel the world on a boat called the Bouchon with their parents and their cat. The great thing is that they write up their adventures for you to read, my reading friend! Off India, a tsunami threatens to propel the Bouchon directly onto the shores of North Sentinel Island. This land is home to a menacing tribe who do not allow anyone to approach their shores and who do not hesitate to use bows and arrows to ward off intruders. Tsunami and murderous tribe, ÔEloi and Eglantine run all dangers.