The Thing (1984) # 21 (NM) Canadian Price Variant • CPV • John Byrne • MarvelThe Thing (1984) #21 (NM) Canadian Price Variant is a must have for any collector of US comics. Written by John Byrne, this action packed comic is part of The Thing series and features The Thing as the main character. The comic is in near mint condition with a 9. 4 grade certification, making it a rare find. The Canadian Price Variant, or CPV, adds an extra layer of collectibility to this already sought after comic. Published by Marvel Comics in 1984