_____       _            _     _ _       _____
/  ___|     | |          | |   (_| )     |_   _|
\ `--.  __ _| |_ ___  ___| |__  _|/ ___    | |_ __ ___  __ _ ___ _   _ _ __ ___
 `--. \/ _` | __/ _ \/ __| '_ \| | / __|   | | '__/ _ \/ _` / __| | | | '__/ _ \
/\__/ / (_| | || (_) \__ \ | | | | \__ \   | | | |  __/ (_| \__ \ |_| | | |  __/
\____/ \__,_|\__\___/|___/_| |_|_| |___/   \_/_|  \___|\__,_|___/\__,_|_|  \___|

Uncover the dust

You’re walking in a desert.

The air is dry and there is no one else around.

You are holding the notebo‌‌‌‌​‍​‍​‌‍‍‌​‌‌‌​​​​‌‌‌​‌‍​‍​‍‍‍​‌‌‌​‌‌‌‌​‌‌​‌‌‌​‍​‌‍‌​‌​‌‍​‌‌‌​‌‌‍​‌‍‌​‌​​‍‌‌‍​‍‌‍‍​‍‍‌‌​​‍‌‌​‌‌‍‌​‌‍​‌​‌​‌‌‌‍‍​‌​‌‌‍‍‍​‍‌‌‌‌​‍‍‍‍‌​‌‌‍‍‍​‍‍‍‍‍​‌‌‍‍‍​‍‍‍‍‍​‍‍‍‌‌​‌‍‍‍‍​‍‍‍‍‍​‍‌‌‌ok that contains all the keys you've collected so far.

After you walk alone for a few hours, you come across a lump in the sa‌‍‍‍‍​‌‌‍‍‍​‍‍‌‌‌​‍‌‌​‌‌‌​‌‍‌‌​‍‌‍​‌‍‍‍​‌‌‍‌​‍‍​‌‌‌‌‍​‌‌‌‍‍​‍‌‌‌‌​‍‍‌‌‌​‍‍‍‍‌​‌‍​‌‌‍‌​‍‌‌​‌‌‌​‌‍‌‌​‍‌‍​‌‍‍‍​‍‌​‌‍‌‌​‍‌‌‍​‍‍‍​‌‌​‌‍‍‍​‍‌‌​‌‌‌​‍‌‍‍​‍‍‍‌‌​‌‍‌​‌‌‌‍‍​‌‌‍‍‍nd...

The first hunter who unlock the key will get 100 dollars in BTC as the additional prize.