The Motherlode

 is one of the Islands in The World of Portal Knights.

Island Level
Level: 21

Portals

 * 1) New Caul (Requires Green Portal Stone)

Creatures

 * White Slime
 * Frost Maggot
 * Grunt Berserker
 * Leader Grunt
 * Mirror Golem
 * Hollow Knight Overlord (not listed, only at night)

Plants

 * Magenta Berry Bush
 * Wonder Crystal
 * Flying Wonder Crystal
 * Corundum

Resources

 * Coal
 * Marble Block

NPCs

 * Carl the Collector
 * Jerry
 * Tom

Trivia

 * If you dig below the floating Studded Ruinstone Block cube there is a room filled with 292 Refined Celestial Block.