Clayface is back again for his third round with Batman and Robin in Detective 312 (Feb. 63). Matt Hagen once again escapes from prison and recharges his powers from his secret pool in this Bill Finger/Sheldon Moldoff story.
At first, Hagen uses his powers to impersonate Batman, entering banks and warning people to leave immediately, and then looting. But Batman catches him at this, and Hagen flees.
Batman stops another scheme, in which he makes himself appear to be a work of art to gain access to a vault, but manages to follow him back to his pool when he goes to recharge.
In their fight, Batman falls in, and becomes a Clayface creature himself, leading to the big climactic, shape-changing battle.
Which ends when Batman, as a tree, punches Clayface in the head. A bit of a let down.
Clayface returns in a few months in the pages of Batman.
Zook is much more in focus in this Martian Manhunter story. J’onn keeps the creature in a cave, from which he keeps escaping, wanting to get in on the action.
Zook, who can turn red and radiate heat when stressed, messes up one of J’onn’s plans, barging in when he mistakenly thinks J’onn is in danger.
When he escapes a second time, he runs into Diane Meade, who brings him to the station, where he encounters J’onn in his John Jones identity.
But in the end, Zook winds up using his heat powers to melt a cube J’onn is trapped in by some bad guys, which convinces him the creature could be his sidekick, and doesn’t need to spend the rest of it’s life alone in a cave.