I volunteer Luke for something. Alas, he isn't in Spero -_-

If you want to get at Heiji or Conan, you could have Kaito try and convince Luke that disguised!Kaito needs to speak to them, but can't figure out how to contact someone specifically with the communicator (he's not good with technology, so it wouldn't take too much to convince him). But that's the only way I can help in that department X_x;