'The Girl With Red Hair' is a well-made adventure story.
It's only major weakness seems to be a redundant prologe that delays the start of the plot. However, once that is out of the way the action starts quickly and proceeds at a fast pace. At times, the prose can be a little too flowery, though that is a matter of personal taste. There are no lengthy blocks of exposition breaking the flow which always refreshing.
The story appears to be heavily influenced by P&P roleplaying games, such as Dungeons and Dragons, as a party of heroes and their quest feature prominently in the plot. Depending on your personal tastes this may be a flaw of the book as it may strike you as a tired cliche. It takes a while for some of the party members to show personality traits beyond their function in the party (e.g. 'the healer') but since they are few in number that doesn't become a major obstacle.
If you enjoy Fantasy in the style of a roleplaying campaign and a focus on a party of heroes you should have a good time with 'The Girl With Red Hair'.
The Girl With Red Hair on Goodreads: https://www.goodreads.com/book/show/30008811-the-girl-with-red-hair?from_search=true&search_version=service
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