Are you celebrating HalloWEENDY’s? 

Halloween treats aren’t just for kids this spooky season as Wendy’s brings festive fun for the whole family — including the adults.

Starting Monday, Oct. 21, while supplies last, fans can order a limited-edition Boo! Bag meal that includes a Dave’s Single burger, small Hot & Crispy Fry, a small Frosty, a glow-in-the-dark Bone Chiller Frosty figure and a Boo! Books coupon sampler.

The Boo! Books come with coupons for five free Junior Frosty treats, plus a bonus coupon for a $1.99 kids’ meal with any purchase, valid through the end of the year. 

Buying a Boo! Bag isn’t just a treat for yourself, either. Every Boo! Books coupon book sold through Nov. 3 — whether in a Boo! Bag or individually for just $1 — supports adoption of children in foster care through the Dave Thomas Foundation for Adoption. 

Coupon books can be purchased separately via the mobile app or at Wendy’s self-order kiosks — just add them from the “Give Something Back” section.

Boo! Bags will be on the menu alongside Wendy’s Frosty Frights kids’ meal, which offers a choice of four-piece chicken nuggets or a hamburger or cheeseburger with Junior Hot & Crispy Fries or Apple Bites and a kid’s drink.

With the introduction of Boo! Bags, everyone in the family can get a Halloween treat at Wendy’s.

The french fries were recently ranked the second-best fast-food french fries by critics.

Wendy’s isn’t the only chain offering a Halloween deal.

McDonald’s — which earned the top spot in the fries rankings — recently announced that its popular Happy Meal Book Buckets are back and will include new colors and customizing stickers.