Trace That Call
Can you trace the way through to your contact inside the maze?
Your cell phone can be used as a tracking device. It' against the law for anyone to do this, but be careful what you say!
Pour lemon juice in a bowl. Dip a toothpick in it and with the lemon juice write your message.
You can see the lemon juice on the Invisible Ink paper only when it's wet. When it dries it's invisible!
When you want to read your message hold it over a light bulb and the ink will turn brown. The hotter the light bulb the better, so be careful.