Lachlan Seipel was diagnosed with a rare form of bone cancer when he was 17, meaning a year of gruelling chemotherapy. He says his determination to write a book helped him pull through, and now that labour has borne fruit.
For more from ABC News, click here: https://ab.co/2kxYCZY
If you’re in Australia, you can watch more ABC News content on iview: https://ab.co/2mge4KH
Subscribe to us on YouTube: http://ab.co/1svxLVE
Go deeper on our ABC News In-depth channel: https://ab.co/2lNeBn2
You can also like us on Facebook: http://facebook.com/abcnews.au
Or follow us on Instagram: http://instagram.com/abcnews_au
Or even on Twitter: http://twitter.com/abcnews