The portal system is replaced with a more secure successor over time. Inferno's subworlds are still non-urgent, but the daeva do get a portal to Limbo, where the humans present are much less likely to be able to freak out and successfully move from freaking out to doing anything along the lines of "nuke the rogue daeva and hope the summoner's within the blast radius". Cam visits his dad and gets a letter to his mom asking that she show up at his dad's house. He makes useful things in ways that won't be too traceable (if his dad's fridge has slightly more bacon and cheese and apples to share with the neighbors a few days in a row, who'll notice?), as a short-term intervention while awaiting more acculturation to the way Limbo works so they won't upset any very delicate balances. The portals to the other worlds can wait until there are actual plans on what to do with them. And possibly until their alts have more free time to help. In the meantime, Cam has his parents again.