When Tonya and her friends decide to sail around the world they want to see exciting things and visit exciting places. But one day, they meet an orca - a killer whale - one of the most dangerous animals in the sea. And life gets a little too exciting.
Oxford Bookworms Library is a readers series for secondary and adult learners, with seven reading levels from A1-C1. Including over 270 original and adapted texts graded and available with audio and in e-book formats, it ensures a comfortable read at every level.