El Día Más Brillante: En Busca de La Cosa del Pantano

In 2012, ECC Ediciones published this single-issue Spanish-language one-shot, a standalone spotlight on the fan-favorite Swamp Thing character. Part of the publisher's "El Día Más Brillante" (The Brightest Day) line, it offers a focused, self-contained story for readers exploring the mystical side of the DC Universe. While a brief entry, it stands as a concise, accessible primer for Spanish-speaking fans curious about the elemental hero.