The Student Workbook includes sections on critical reading, analytical reasoning and vocabulary. Continuing the adventure begun in The Broken Circle, Secrets of the Lost Caves starts just as the Circle of Twelve is complete, but it is soon broken again and the desperate race to find the Lost Caves and unlock the Secrets of the Crystal Caverns begins. Who will discover it first? The Dark Queen and her Kindred Spirit? The party of Six plus One with addled Lavender Mae as their guide? Or Aubergine, the Potluck Queen with the help of Second Sight Sierra and Trader turned Teal? We soon learn that Mamie Verde has not drifted peacefully to the Land of Dreams, but is reborn high above the lost city of old Tigeria, deep within the Northland Glacier to assume guardianship of the Ancients, twenty years too late. And in the war torn Middlelands, nothing is certain but the power of the Fire and Ice Shawl, the need to make the amethyst necklace whole and the necessity of possessing both halves of the Skell of House Crystal Keep. Follow the continuing adventures of the Fossick boys and knitting witches as they journey north to the windswept Out Crops to ally with Hed Clansmen and lift the curse of the Glacier Born in an attempt to reawaken the Magic of Men.