We’ve made another puzzle-filled Christmas Card treasure hunt type thing, and you can sign up for your free copy now! We will start sending cards out in December.

The card features a number of connected puzzles to solve, including some based on word games from our “by POWGI” series, and picture logic puzzles like Pic-a-Pix. There are no specific instructions, but you’ll know when you’ve solved it!

If you enjoy the puzzles, please consider making a donation to help plant more trees.  We've set a target of £500 because we've printed 500 cards in the first batch. If more people sign up this year, we'll increase the target to match!

Donating through JustGiving is simple, fast and totally secure. Your details are safe with JustGiving - they'll never sell them on or send unwanted emails. Once you donate, they'll send your money directly to the charity. So it's the most efficient way to donate - saving time and cutting costs for the charity.