Almost gave up this novel as its young adult focus makes it the weakest novel I have read from this author. A bratty (but ironically also scholarly when it suits the narrative) young girl narrates most of the first part, which is a dull account of a journey to Mars - lots of exciting stuff about the lack of bathroom facilities. On Mars events take a very strange turn, as the founding of a colony thread is dumped in favour of a plot twist that would not look out of place on 'Lost in Space'. Then things switch into a Clarkean scenario with a discovery on Triton. Possibly good for the younger reader, but too formulaic and prone to info-dumping through cardboard characters for us old-timers.