The PostmarkClub · Free for grown-ups
Free: the next Mud Crew adventure — print in 30 seconds
Free pack in about 30 seconds. No card. Just for grown-ups. An optional extra: the book is complete on its own.
- Cookie’s Midnight Snack bonus mission pack — screen-free print & play
- Deluxe stamp sheet — more stamps for their Mud Crew passport
- Mud Crew Badge certificate with your child’s name
Grown-ups only: we collect no children’s data
This sign-up is for parents and guardians aged 18+. We only ask for your email address. Please don’t enter a child’s name, email or any other details about them. Made by parents in Ireland. You can unsubscribe in one click from any email. See our privacy policy.
Unlock your free pack
What’s in the free pack
The three freebies the book promised.
Each one comes in A4 (Ireland, UK, Europe) and US Letter. We’ll also tell you when the next book arrives — that’s a bonus, not one of the three.
Cookie’s Midnight Snack
Bonus mission pack: screen-free print & play — a story, maze, colouring page and stamp to keep the Mud Crew adventure going at home.
Deluxe stamp sheet
More stamps for their Mud Crew passport — colour and colour-your-own versions, same size as the book’s passport spaces.
Mud Crew Badge certificate
Write your child’s name in the big box and hang it on the fridge.