This is a tag that places a clear message at the top of pages that indicates the topic is derived from what this wiki considers the Expanded Cthulhu Mythos. It should not be combined with {{realworld}}, {{Derlethmythos}}, {{Lovecraftcircle}}, {{Mythosadjacent}}, {{Mythosinfluenced}} or {{Weirdtales}}. {{Expandedmythos}} "outranks" and therefore entirely displaces any of them.
To use, just type put {{Expandedmythos}} at the very top of the page.