This book started off pedantically. Incredibly boring. Not much in the way to motivate a reader to continue reading. Extremely heavy on observation of ‘things’ – going over each minute detail is unnecessary and is not good story-telling. Once I got to over a third of the way through the writing improved. I think the book needed to be heavily edited in the first third. The miniscule detail was unnecessary and was to the detriment of building up characterisation and plot. That the actual concept is an exciting one, a mission to Titan that is deeply flawed from the start, and that the writing did improve, is what allowed the three stars.