Once upon a pillow, there lay a small, cuddly teddy bear named Tumbles.

Every night, when Jamie fell asleep, Tumbles awoke to explore.

Tumbles saw Jamie's blocks and had an idea. 'Let's build a tower,' he thought.

First, he sorted the blocks by size. Then he stacked them, largest to smallest.

The tower was tall, but wobbly. 'Hmm,' muttered Tumbles, 'I need to rebalance it.'

He moved one block at a time, following a pattern: take, test, and place.

Suddenly, Tumbles heard a noise. He froze, looking around the dark room.

It was just the cat, Whiskers, nuzzling at a teddy-sized blanket.

Relieved, Tumbles went back to his tower. 'If-Else,' he pondered. 'If stable, else adjust.'

As dawn approached, Tumbles knew his playtime was ending.

He followed a sequence to clean up: one block, two blocks, back in the box.

With everything in its place, Tumbles climbed back onto the pillow and closed his eyes.

As Jamie awoke, she found her room tidy, with Tumbles smiling, ready for another night's adventure.