Template:Spoiler

Spoiler warning: Details about quests or other game content follow. This template indicates that the content following is a spoiler of content that exists in game. It is typically used in conjunction with the End-spoiler template. To use this template, type Spoiler before the spoiler content, then type End-spoiler after the spoiler content.

You may also want to consider the Player-spoiler template, which is used to indicate information that other players should consider highly OOC.