Act 5 Act 2 is the second part of Act 5. It is entitled He is already here. It is vastly longer than any other act before it, and follows the kids across the Incipisphere and the trolls in their Ectobiology Lab, working together to plot and execute a plan to get rid of Jack Noir, which culminates in the Critical Moment. Click the "File:Sburb Logo.svg" to open the page from Homestuck.