Welcome to the 2025 Mystery Quilt Challenge!
We will kick off in April, and piece and assemble the top by January (finished size: 61 x 61 in). There will be 10 clues in total, this first being the selection of fabrics. Each month you will receive another clue explaining a few simple steps to advance with the quilt. The main technique used is half-square triangles (HST). I hope this process helps you learn new techniques along the way and have fun too!
For more information, contact any of the Leadership Team.
This Challenge is open to Guild members only. Become a member and accept the challenge.
Clue 8 – October 2025
This is the final clue for this Mystery quilt. I hope you enjoyed the process!
Cutting:
· From the background fabric, cut 6 strips across the width of fabric, 2 inch wide, for the inner border.
· From Color D, cut 6 strips across the width of fabric for the outer border, 4.5 inch wide.
· From Color C, cut 6 width-of-fabric strips 2.5 inch, for binding.
Piecing:
Assemble following the chart, add narrow inner border, then wide outer border, quilt as desired and bind.
Click on the link below to “How to make a No-Sew Scandinavian Star”
https://createwhimsy.com/projects/scandinavian-fabric-stars/
2025 Mystery Quilt – Clue 4 (June)
Cutting:
From the background fabric, cut 3 squares 8 x 8 inch. From Color C, cut 3 squares 8 x 8 inch. Keep leftover fabric after each clue – you may need it later!
Piecing:
Eight-at-a-time HST technique.
1) Place the two squares (one background and one color C) together, right sides facing. With a pencil, mark two diagonal lines on the wrong side of one square.
2) Pin the squares together, ready to sew.
3) Sew ¼ inch on both sides of each marked line.
4) Cut along the two marked lines.
5) Cut in half horizontally.
6) Cut in half vertically.
7) Separate out into 8 half-square triangle units (HSTs).
8) Press seam allowances towards a darker fabric.
9) Trim each unit to measure 3.5 inch square, being careful to keep the diagonal seam running from corner to corner in the middle of the units (i.e. don’t trim just two sides, trim all four sides).
10) Repeat with remaining cut squares to make 24 HSTs. Put HSTs in a ziplock bag marked Clue 4.
Hint: Pinterest and Youtube have plenty of detailed directions for this method. Check them out if you get stuck! These are several sources:
https://www.blossomheartquilts.com/2015/05/hst-tutorial-eight-at-a-time/
Youtube: https://youtu.be/YFUGQzBzpQg?si=nmrg8qyDhD_XnTC7
Or just search for 8-at-a-time HST!
Happy quilting!
Cutting:
From the background fabric, cut 7 squares 8 x 8 inch. From Color A, cut 7 squares 8 x 8 inch. Keep leftover fabric after each clue – you may need it later!
Piecing:
Eight-at-a-time HST technique.
- Place the two squares (one background and one color A) together, right sides facing. With a pencil, mark two diagonal lines on the wrong side of one square.
- Pin the squares together, ready to sew.
- Sew ¼ inch on both sides of each marked line.
- Cut along the two marked lines.
- Cut in half horizontally.
- Cut in half vertically.
- Separate out into 8 half-square triangle units (HSTs).
- Press seam allowances towards a darker fabric.
- Trim each unit to measure 3.5 inch square, being careful to keep the diagonal seem running from corner to corner in the middle of the units (i.e. don’t trim just two sides, trim all four sides).
- Repeat with remaining cut squares to make 56 HSTs. Put HSTs in a ziplock bag marked Clue 2.
Hint: Pinterest and Youtube have plenty of detailed directions for this method. Check them out if you get stuck! These are several sources:
https://www.blossomheartquilts.com/2015/05/hst-tutorial-eight-at-a-time/
Youtube: https://youtu.be/YFUGQzBzpQg?si=nmrg8qyDhD_XnTC7 Or just search for 8-at-a-time HST!
Happy quilting!
This mystery quilt features a background fabric and 4 colors:
- Background (2 yards)
- Color A (3/4 yard)
- Color B (3/4 yard)
- Color C (3/4 yard)
- Color D (1…1/8 yard)
Fabric options:
Option 1: You can pick the background and 4 coordinating fabrics. Fabric B is good for showcasing a large or medium size print (if desired), while fabrics A, C and D would be better with a small print or solids.
Option 2: Instead of picking four single fabrics, each of the same pattern, you can use four colorways for a scrappier look. Assemble the total amount of each A, B, C and D from similar colorways (for example, reds, greens, yellows, blues etc).
Option 3: Using background and 2 main colorways (for example Red, Blue and White). My suggestion would be to have fabrics A and C in one main color, B and D in another main color, and white as the background.
Option 4: For ombre effect, my suggestion would be to arrange colors from the darkest to the lightest (or from the lightest to the darkest) as A to B to C to D.