A new boxed set comprising of the first ten entries in the 'Adventures' series is due to be released in August 2016:
https://catalog.simonandschuster.com/TitleDetails/TitleDetails.aspx?cid=14017&isbn=9781481469265
Cool! Thanks for the heads up on this. :) 8)
(https://catalog.simonandschuster.com/Covers800/9781481469265.jpg)
I like the packaging! Great choice for the cover art there- one of the more exciting covers for this series certainly. :) 8)