Home comic book Challengers Of The Unknown #016 View cart You cannot add that amount to the cart — we have 1 in stock and you already have 1 in your cart. 🔍 Challengers Of The Unknown #016 Grade 2.5 $20.00 CAD In stock Challengers Of The Unknown #016 quantity Add to cart SKU: ITM726847 Categories: comic book, raw Tags: silver age (1956-69), superhero Additional information Grade 2.5 Related products Action Comics #245 $45.00 CAD Add to cart Journey Into Mystery #121 $50.00 CAD Add to cart Journey Into Mystery #117 $70.00 CAD Add to cart Journey Into Mystery #117 $50.00 CAD Add to cart