As a fan of both 'John Carter of Mars' and 'Lieutenant Gullivar Jones: His Vacation' I was really looking forward to reading this, and it surpassed my expectations. The two characters had been depicted together before briefly in 'The League of Extraordinary Gentlemen, Vol. 2' by Alan Moore, but this of course is a full story devoted to the concept. The first part of the graphic novel is quite a faithful albeit somewhat condensed adaptation of Edwin Lester Arnold's original Gullivar Jones book, with a few clever tweaks like making the Mars he visits Barsoom in the past etc to make the idea plausible that he can later meet John Carter in the second part of the book set in Barsoom's present, and the final part is set in it's future a thousand years after the time of John Carter. Both main characters are well done, and neither gets short shifted as can often happen in these types of crossover tales, and the artwork is really well done too, so all in all, I thought it was excellent and highly recommend it to anyone who is a fan of either of these two great characters.