You find a pencil when you enter the train. When you visit Tesla after his arrest, give him the pencil to draw a sketch of the room. Use it to circle the missing briefcase -- you can only do this if you have visited his cabin already.
In front of the bed the briefcase was open instead of closed
in the drawing the suitcase is closed, but when you return to the guy's room after he is arrested, the case is open.
You click on the map (it is in the right hand side corner at the top), and at the bottom left hand side there is a blue circle that says Restart Island. Click on it and you will restart the island.(Notice that it is not the map of all the islands but just the island map of Mystery Train.)
The lockpicks belong to Eric Weisz (aka Houdini). Once you ask him about the opened briefcase, you learn his identity from the newspaper reporter. Go back to his room and find the picks.
You get past the pinkerton guard by going to the luggage cart and look towards the roof- there is an opening! Get past the obstacles to the coal train and talk to Tesla. Open up the drawing he shows you, and circle the breifcase. Go out to search for who broke into it. Good luck!
There isn't a location called Mystery Island.
Kidnapped to Mystery Island was created in 1965.
Mystery of Crocodile Island was created in 1978.
The ISBN of The Mystery of Cabin Island is 9780448089089.
The duration of Kidnapped to Mystery Island is 1.6 hours.
The duration of Manhunt of Mystery Island is 3.65 hours.
The Mystery of Cabin Island has 214 pages.