I've sent nick Valentine to spectacle island(piper is on there) after I picked up cait at combat zone, it says spectacle island has 2 people on it but I can only find piper on the island. I've looked around everywhere there 2-3 times and I put a bell up too but only piper walks up. What do i do? Do companions actually walk there or do they teleport? Maybe I put nick in sanctuary but I looked everywhere there too but I couldn't find him, and I checked his office in diamond city and he isn't there either.