Adventure was published by D.C. Thomson based in Dundee, Scotland.
Adventure was the first of the 'Big Five', it ran for a total of 1878 issues between 17th September 1921 to 14th January 1961, where it then merged with 'The Rover'.
One of the Big Five boys' story papers from D.C. Thomson (Others being, The Hotspur, The Rover, The Skipper and The Wizard). Featuring illustrated stories of adventure, sports, schooldays, crime, s.f. plus jokes.
They bear no relation to the American pulps or, in fact, the British pocket libraries. They are in a class of their own being anthology story papers which appeared, for the most part, weekly and were aimed at kids and teenagers but were consumed also by many adults.
The mix of illustrated serials of many genres, a few pages every week, ensured there was something for every reader in every issue and they sold shedloads.