The Summergate Post Office was a structure in Summergate that served as a mail system for citizens of Dragonhollow's Fourth Era. It was built and operated by Retro and Tox. Sprankles, Retro, and Tox had discussed the possibility of building a post office for months but decided to postpone planning and construction until the conclusion of the Summergate Secret Santa. Two different locations were initially considered. The first, the site of the Secret Santa Christmas tree, was deemed to be too small. A second site on the West Road next to the Pixel Art Museum was chosen instead.