Free The Lich by Adventure Time

The sky was grey and cloudy over Princess Bubblegum’s castle in the Candy Kingdom. The princess decided to relax by meditating with her friends Finn and Jake on one of the castle’s balconies.
    ‘ OMMMMMM ,’ they chanted in unison, their legs twisted like pretzels on the yoga mat they were sharing.
    ‘Jake,’ Finn whispered to his canine companion. ‘What am I supposed to be meditating about?’
    ‘Don’t know,’ Jake admitted. ‘I’m thinking of pillows stuffed with spaghetti.’
    Princess Bubblegum placed her hands on Finn’s and Jake’s heads.
    ‘Clear your minds,’ she said in a soothing, yet serious, tone of voice.
    Finn closed his eyes and imagined himself as older and stronger, the bravest adventurer in the Land of Ooo, his muscles bulging on one arm. He imagined that his other arm was mechanical.
    Jake closed his eyes and imagined Lady Rainicorn, his true love, riding a wild stallion.
    When Princess Bubblegum closed her eyes, a dark, shadowy, horned creature appeared. Flames raged all around the creature. It murmured to the princess ominously. The princess opened her eyes, gasped and jumped off the yoga mat.

    ‘I have to go check on something,’ she said cryptically.
    ‘Can we go with?’ Finn asked.
    ‘Perhaps you are ready to go with,’ Princess Bubblegum replied, her brow furrowed with worry.
    Finn and Jake pounded fists. They were always ready for a new adventure, and it looked like their time on the yoga mat had helped them find one. Who knew meditating could have such quick results?
    ‘Guys, you’ll need to put these on,’ the princess informed them.
    Bubblegum unclasped the golden earrings she was wearing. The jewellery opened up into a golden circle with a green jewel inside.
    ‘Roll back your hat,’ she said to Finn as she placed the chain on top of his hair.
    It immediately formed a protective bubble around Finn’s head. Then, just as quickly as the bubble had appeared, it disappeared. The same thing happened when the princess placed the other chain on top of Jake’s head.
    Princess Bubblegum touched her crown and a bubble enveloped her head, too.
    ‘Stay close to me,’ she quietly advised them.
    Then she clapped her hands in a rhythmic pattern and Peppermint Butler appeared. He blew a huge pink bubble around the princess, Finn and Jake. They floated up until they reached the tree that grew at the top of the castle. They weaved in and out of its branches.
    ‘At the heart of this tree is an ancient evil held in a prison of amber,’ Bubblegum explained. ‘The Lich.’
    ‘What’s that sound?’ Finn asked nervously.
    ‘He’s casting spells, trying to get in your head and control your bod,’ Bubblegum explained. ‘But these gems are protecting our minds from his influence. If we lost them, we’d be defenceless. He would have full control over us.’

    ‘That’s freaking nuts!’ Finn exclaimed.
    While Princess Bubblegum and Finn were talking, a snail emerged from Finn’s backpack and waved at the Lich. The evil Lich possessed the snail and beckoned it toward the amber trap. Finn was powerless to stop it.
    ‘Beyond Iceberg Lake lie the ruins of the Lich’s tower, where he was converting the planet’s life force into unholy power to destroy all of Ooo,’ Princess Bubblegum continued. ‘But before he could, the legendary Billy attacked him and pummelled him into the resin of this tree.’
    The possessed snail slithered over to the Lich and began to bang its head against the amber prison. A small crack appeared. As the snail butted its head against the amber over and over again, the crack grew until it was large enough for the Lich to ooze through it.
    The ancient evil had been unleashed again!

Princess Bubblegum put her hands on her head and shrieked when she saw the Lich.
    ‘What the nuts?’ she cried. Her voice was a mixture of trembling fear and perturbed princessy petulance.
    Finn and Jake turned around and gasped in horror.
    The Lich was sprawled on the