Kirsty and Rachel are invited to a special birthday celebration organised for twins! At the party, the two friends meet Tilly the Twins Fairy but Jack Frost has stolen her magical items! Now the girls must help Tilly get them back, before Jack Frost creates his very own twin! Can the girls help their fairy friend to get her magical items back before it's too late? There's a heart necklace and a Gemini ring to find in this book.