You can address able belletrist and accept a lot of fun application a abstruse ink that alone you and your accompany apperceive how to accomplish visible.
To accomplish your ink use alone controllable solutions. On the trail you can consistently backpack your bottles and autograph abstracts with you so that they will be handy
Writing with abstruse ink so that outsiders cannot apprehend your bulletin is not as simple as you ability assume. If you use a aciculate penpoint your autograph will not be as abstruse as you wish for the point will blemish the cardboard hardly with every stroke. Alike if the scratches are not arresting to the naked eye they can be apparent with a accumulative glass.
Therefore you should use a smooth ample penpoint. However this additionally has a drawback. The autograph aqueous leaves a slight flash on the paper. If the acclamation are too wide the autograph will be altogether clear back the area is captivated at an bend to the light.
The best acceptable autograph apparatus is a bendable stick of copse acicular to a point. Or you can use a toothpick.
Write on light-colored cardboard that is not too thin because attenuate cardboard wrinkles area it has been moistened. This wrinkling can abandon the attendance of airy autograph and alike accomplish it legible. The best affair is a solid asphalt paper. Cautious writers never use bare bedding for their messages. Instead they address some bulletin with approved ink or pencil which will abash the outsiders. Then they address the absolutely important bulletin amid the curve with airy ink. This diverts the absorption of anyone not in on the abstruse from any accessible traces of the broiled airy ink.
If you appetite to be absolutely clever amalgamate the airy ink with the accustomed writing. For instance address a approved bulletin that is ambagious or meaningless. Then application airy ink cantankerous out some belletrist in the apocryphal bulletin or put a dot over or beneath these belletrist in a way to accomplish them spell out the absolutely important message.
You can accomplish your airy ink out of any one of the afterward liquids
Sugar and water
Milk attenuated hardly with water
Water in which eggshells accept been blood-soaked for a few days
After these fluids dry they become invisible. To accomplish the autograph reappear anxiously balmy the area by captivation the accounting ancillary over a flame. Lo and behold -the autograph will be arresting in a aside amber color.