Message in a Bottle

Source
This item can be fished in Darkshore, Wetlands, Stormwind Harbor, Darkmoon Island, and probably other places as well.

Contents
May contain any one or several of the following:
 * Damp Diary Page (Day 4)
 * Damp Diary Page (Day 87)
 * Damp Diary Page (Day 512)
 * Manual: Strong Anti-Venom
 * level 10-25 scrolls
 * level 10-30:
 * Alchemy recipes
 * Blacksmithing plans
 * Enchanting formulas
 * Engineering schematics
 * Leatherworking patterns
 * Tailoring patterns