Delphine gets a cryptic note from Nate and is soon plunged into a nonsensical adventure. Nate has managed to make his mother's cat, Proton, not only a giant, but an invisible one! He's prone to making these sorts of moves, and to further complicate matters, he has hidden the formula on four different people... and a goldfish. Despite his brilliance and extreme wealth, he needs help from Delphine. She finds him oddly attractive, and is willing to accompany Nate on his escapades, whether they are jumping from a plane or driving in a car to elude the dangerous Red Death Tea Society, which is out to capture Proton and use the cat for their own evil devices. Nate's dog, Bosper, is also engineered and can talk, which makes it easier to tell him to do things, like keep the giant invisible cat in one place while Delphine and Nate try to figure out a plan. Luckily, the two are able to take care of the issue with Proton, but the Red Death Tea Society is still interested in Nate, and Delphine is ready for any adventure that comes up.