At first she thought Tom had lost his mind and was playing some kind of sick joke on everyone but she discarded the idea almost immediately. Izzy stared at the person claiming to be her son inhabiting her husband's body and debated what to do.
She could shoot him without killing him and then lock him in one of the empty cabins until they could get him to a doctor, and she had to restrain herself from dropping her hand to the pistol on her hip. It was a bit paranoid to be carrying onboard ship, but they'd gotten into pickles before where being armed came in handy. So she'd gotten into the habit of wearing her rig as automatically as she used to put on a watch.
The body language of the man in front of her wasn't Tom's, that much was clear, and they hadn't talked about the island or their children from the other timeline with strangers. They'd also been in deep space for several days now without encountering or communicating with anyone. So there was a good chance that he was telling the truth, but it paid to be paranoid these days. He'd convinced Izzy and Sookie though, so she was willing to hear him out first.
"You'll want to stay right where you are and give me a better explanation than that if you want me to believe you." She told him levelly. "How about we talk about it over tea and carrots?"