Batman Superman best #1-10 (Key Books)

Product Name: Batman Superman best #1-10 (Key Books)
DC Batman Superman Vol. 2 #1c (Key) 1st cameo app. of the Shazam Who Laughs. #2a (Key) 1st app. of the Superman Who Laughs, 1st full app. of the Shazam Who Laughs. #3a (Key) 1st app. of the Dark Multiverse Blue Beetle. #4a (Key) 1st full app. of the Secret Six, Jim Gordon, Hawkman, Donna Troy, Shazam, Blue Beetle, and Supergirl. All infected by the Batman Who Laughs toxin. #5a (Key) 1st full team app. of The Secret Six. #6a, 7a, 8a, 9a, & 10a. All in best NM condition and never read.