As Alice and Bob walked through the woods
The network of trees around them grew, stretching out for miles and miles.
'How will we ever find our way back?' asked Bob.
'Follow the breadcrumbs,' said Alice. She had been leaving a trail behind her.
'But what about the ravens, won't they swipe them?' said Bob.
Alice chuckled to herself, 'These are no ordinary breadcrumbs, they are immutable breadcrumbs. We will always be able to trace our way back.'
