Invisible Inks
Remember writing in lemon juice, scorching the paper and having it show up? Well you can use a lot more than lemon juice! You can also use grapefruit juice, acetic acid (white vinegar), onion juice, and milk.
*mix 4 measures of table salt in a test tube 1/2 full of water, use as ink.When the writing is dry,rub over it lightly with a soft lead pencil and the writing will stand out.
*to create invisible "blue" ink -dissolve one measure of sodium ferrocyanide in a test tube 1/2 full of water. Using a toothpick, write a message with this solution on a blank sheet of paper. Make another solution by dissolving one measure of ferric ammonium sulfate in a test tube 1/2 full of water. Dampen a piee of blotting paper with this solution and press it on the first sheet of paper. Your writing will turn blue.
*to make your secret messages disappear - dissolve 1/2 measure of ferric ammonium sulate and 1/2 measure sodium ferrocyanide in a test tube 1/4 full of water. Using a toothpick, write a message with this solution on a blank sheet of paper. To make the writing disappear, say your magic words as you wipe over it with a mixture of two measures o sodium carbonate in a test tube of 1/4 full of water.
*to create a special ink that disappears when you breathe on it: Make an ink by dissolving 3 measures of cobalt chloride in a test tube 1/2 full of water. Using a toothpick, write a message with this solution on a blank sheet of paper. Carefully hold the paper near an electric light bulb. Your mesage will appear in blue. The blue writing will disappear again if you blow on it.
To Create Magic Writing Paper
Put one measure of sodium ferrocyanide nd one measure o erric ammonium sulfate on a sheet of blank white paper. Mix the two dry chemicals and ru the powder over the paper. Shake off any excess powder and discard. Using just plain water and a toothpick, write a message on the paper. The writing will appear blue. To make your writing appear black, substitute tannic acid or the sodium ferrocyanide.
A simple alternative to this is to soak a piece of paper in acetic acid (white vinegar) and let dry. Fill a test tube 1/4 ull of water and dissolve 2 measures of sodium carbonte on it. Write with this solution on the dry acetic acid paper. Now scorch the paper, being careful not to let it burn. The paper will turn black and the writing will be white.
To Create the Illusion of Water Turning into Blood
(Oddly enough, this trick happens to a lot of Saint's artifacts...) Put 5 measures of sodium carbonate into an empty glasss. Fill another glass 1/2 full of water and add 10 drops of phenolphthalein solution to it. Pour the contents of the second glass into the first one and stir with your "magic wand." The water will turn red. To turn it clear again, insert a drinking straw into the solution and blow out through it.
To Turn a Clear Liquid Amber and then Blue
Before starting, prepare a magic glass by putting 3 drops of tincture of iodine into a clean, dry glass. Your audience will think the glass is empty. Say a few magic words as your pour clear water into the glass. The solution will appear amber. If you then add three measures of cornstarch and stir, the solution will turn blue.
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