This is the 20th pattern in the Weekend Mystery Crochet Alongs with Underground Crafter. This pattern will be updated on June 27, 28, and 29, 2025 with a new clue each day. After the CAL ends, this post will be updated with the “big reveal.” This pattern is part of the Third Edition of Granny Square Month.

Materials
Lion Brand Vanna’s Choice yarn (100% acrylic, 3.5 oz/100 g, 170 yd/156 m) – 1 skein in 405G Silver Heather (CA) and 1 skein in 178AC Sea Glass (CB), or approximately 170 yd (156 m) in CA and 55 yd (50.5 m) in CB in any medium weight yarn.

US Size H-8/5 mm crochet hook, or any size needed to obtain correct gauge.

Yarn needle.

Gauge
Granny Square = 3.25” (8.5 cm) square in pattern. For best fit, always check your gauge.