After Jack Frost steals the seven jewels from Queen Titania's crown, Chloe needs to recover the magic topaz quickly so that she can change girls back to fairies and goblins back to teddy bears.
After Jack Frost steals the seven jewels from Queen Titania's crown, Amy needs to recover the magic amethyst quickly since it controls the power to make things disappear.
After Jack Frost steals the seven jewels from Queen Titania's crown, Lucy needs to recover the diamond quickly so that the fairies will be able to fly again.