Blabey's seventh children’s book, The Brothers Quibble, which deals with sibling rivalry, was chosen as the National Simultaneous Storytime Book of 2015, and was read by over 500,000 children on 27 May 2015.
2015 also saw the release of the first two instalments of Blabey's best-selling graphic novel series for junior readers, The Bad Guys. The humorous series follows the adventures of a gang of scary-looking, dangerous animals – Mr. Wolf, Mr. Snake, Mr. Shark and Mr. Piranha – who attempt to change their bad reputations by performing good deeds.