The Pierre Series is a series of Paper Computer Games which began as part of the now-defunct "Xaq's Second Series". This series centers around the character of Pierre, who is an agent of Zoovac. The series began as side-stories to Chris' second series, but later became a full spin-off. Additionally, this series has inspired a spin-off series (Squids in Forests Series), as well as greatly contributing to the overall story arc of Xaq's second series.