So the next step after you have your fabric is to make half sqare triangles
Cut 20 squares 3 7/8 of med color#2
Cut 20 squares 3 7/8" of med/dark colour#1
Cut 40 squares 3 7/8" background
make 40 Hst's of colour #2 and background and 40 of color #1and background they should finish at
3 1/2" square.
Use this method of
making half square triangles or one you prefer.
Draw a line on the back side of your background square from
corner to corner.
Layer one coloured square with one background square right
sides together.
Sew a seam ¼ inch from the line on each side of the line.
Cut on drawn line.
Press open to form
half square triangle.
Trim off dog-ears to make 3 ½” square.
Hope you have fun with this mystery.