Sissel is enjoying his new life as an ordinary house cat. But when Lynne, Jowd and Cabenela struggle to catch a vicious serial killer, Sissel decides to lend a hand - and gets more than he bargined for.

In the process of solving his latest case, Phoenix becomes acquainted with a spirit called Sissel. But when another puzzling murder occurs, the two of them must join forces if they hope to prevent further tragedy. And who are these odd foreigners?

Sissel is enjoying helping others with his meteorite-powered abilities. But is he going to regret helping a certain young genius? Death and some GT spoilers involved.