Every year, incoming Captain Marvel artist David Lopez takes time out of his schedule to create a comic for the holidays. You won't see these at Marvel or DC, but only on his website. This year's installment, the 18th, is a four-page black-and-white comic that again stars Lopez's own character Espiral, whom he created in the late 1990s. Take a read, but make sure to read Lopez's introduction if you're not acquainted with Spanish culture.
You can read more of Espiral's adventures, including the 17 previous Christmas Tale stories, for free on Lopez's website.