Fabled Fishing Net
The Fabled Fishing Net is the high-end version of the fishing nets that can be obtained using the Fishing skill, and can be used in deep water to spawn the Leviathan or Osiredon the Scalis Enforcer (with a host of other sea monsters). They are found in chests recovered from Ancient SoS messages 
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These nets are noted for their distinctive color, and thus are often known as White Fishing Nets.