Haney and Cardy execute a perfect Christmas story in Teen Titans 13 (Jan/Feb 68), right down to the excellent cover.
Cardy does some of his best art on the book in this story, which is hugely based on Dickens' A Christmas Carol. Ebenezer Scrounge runs a junkyard, and demands his bookkeeper Ratchet come in to work on Christmas Day.
Ratchet has a young son in a wheelchair. Scrounge is involved in a smuggling ring with Mr. Big, who has a gun that "recycles" objects into new ones, which can then be sold again.
When the Teen Titans get involved, they decide to teach Scrounge a lesson based on the Dickens novel, with Robin, Kid Flash, Aqualad and Wonder Girl taking the parts of the ghosts, and whisking Scrounge around "supernaturally."
Mr. Big and his gang allow for some actual fight scenes and action. It's all balanced very well, and every single page is beautiful to look at.
Scrounge repents of his miserly ways, helps the Teen Titans bring down Mr. Big, and even presents the Ratchet boy with a shiny new wheelchair. It's hardly surprising that this story has been reprinted numerous times, and will be reprinted even more in years to come, I'm sure.