Board Thread:General Discussion/@comment-34343471-20200121082145/@comment-34343471-20200122184322

This is very similar to the Crazy for Candy event during the Pumpkin Nostalgia event:

"This special mini-event challenge is available to players from Game Level 7 and up. Players have 7 days starting from October 25, 2018 to complete the challenge of collecting a certain amount of Halloween Gifts in order to win the special rewards.

Halloween Gifts are found by successfully exploring the Treasure Box and Haunted Lights puzzles award Players with anywhere from 3 to 5 Halloween Gifts per win. After completing the challenge, Players may continue to collect Halloween Gifts, winning 1 Shot of Vigor for every 300 collected afterwards."
 * Collect 25 Halloween Gifts to win 1 Bubbling Drink - restores 35 energy
 * Collect 50 Halloween Gifts to win 1 Piggy Bank - increases the number of Coins earned by 25% for 90 minutes
 * Collect 100 Halloween Gifts to win 1 Jolly Treats - restores 180 energy
 * Collect 200 Halloween Gifts to win 1 Gold Hummingbird - decreases energy consumption by 30% for 90 minutes
 * Collect 400 Halloween Gifts to win 1 Apprentice's Chest - gives several fixers for assembling collections

The thread for this is event is here about 3/4 of the way down the page.