Speak to the Ice King

Speak to the Ice King is a quest in. After one of their adventures, Finn and Jake realise, the Ice Kingdom must have molten, as much of the land suddenly is flooded.

In Jake and Finn's Interrogation Time they are trying to get more from Simon (aka The Ice King). He admits, he tried to freeze something, but then the walls started to melt. When he tried to fix it, it resulted in even more melting. When he found out, it was his crown causing this mess, Simon threw it away. He saw it land on an iceberg, which drifted off in direction of the Candy Kingdom.

Rewards

 * x10 Small Heart Vial
 * 150 $

Additionally, Finn receives a magic sword named Frosty Cut from Simon.

Next quest

 * Reach the Candy Kingdom