Lost on Hope Island

Trillium Stone and her brother Jacob have been marooned on Hope Island for 2 years. They have survived with the help of a herd of wild goats and an old man, but times are tough. The two, aren't getting along and they must face a hurricane, an earthquake, bee stings and a virus. It is a mother goat and the death of the old man that brings them back together. The question the book asks is, if you were there, could you survive?