Data from Amazon UK, Kobo (GB) and publisher's site between 2021-11-17 and 2021-12-14.
The aforementioned sites list the publication date as 2010-05-04 (Amazon) or 2010-05-06 (Kobo and publisher's site), but the copyright page (as visible via Amazon's "Look Inside" preview) explicitly states "Ebook Edition © JULY 2014" (sic). It also states "Version: 2019-10-08", which is likely an indication that the cover image dates from around then.
Those sources also list the publisher as "Collins", but the title page shows "HarperVoyager".
Print length of 446 pages listed by Amazon UK; 496 pages listed by publisher's site.
