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The Spare Heir and his Kitten Printed on 5x7 cardstock. (Art by: Nora Adamszki)

Save on The Spare Heir and the Kitten with a MKR Treasure Shop promo code

Checkmate is a savings app with over one million users that have saved $$$ on brands like MKR Treasure Shop.

The Checkmate extension automatically applies MKR Treasure Shop discount codes, MKR Treasure Shop coupons and more to give you discounts on products like The Spare Heir and the Kitten.