Envelope "Secret"

by Katrin Shumakov

Use a square of paper.

1 Valley fold the opposite corners together in turn to mark the diagonal fold-lines, and open them up.

2 Turn the paper over.Valley fold the opposite sides and edges together in turn to mark the vertical and horisontal fold-lines, and open them up.

3 Press the middle of the fold-lines, until the sides pop up. Bring the sides together and down towards you. Press the top down neatly. Thereby completing the preliminary fold.

4 Valley fold the lower sloping edge over, so it lie along the vertical middle line. Valley fold the top point down on a line between the fold-lines. Press them flat and unfold them. Repeat it behind.

5 Open out the model. Turn the paper over.

6 Valley fold and unfold the edges as shown.

7 Form the creases. Mountain fold the places specified by the arrows.

8 Hold the model in marked plases. Bring the edges in the direction shown by the arrows.

9 Mountain fold the back layer down.

10 Valley fold the edge, verify the result with the following figure.

11 Valley fold the flap from bottom to top.

12 The result. Turn the model around counter-clockwise.

13 Valley fold the top layer down.

14 Repeat steps 10 -13 for three other flaps.

Envelope "Secret" is ready!