The Vigenere cipher is a polyalphabetic substitution cipher that uses a series of Caesar ciphers with different shift values. It's a more complex and secure encryption method than the Caesar cipher. The Vigenere cipher uses a table of alphabets, also known as a tabula recta or Vigenere square, to perform the encryption.

For the Latin alphabet, the table is a 26x26 grid, where each row represents a Caesar cipher with a different shift value. The resulting table has 26 different Caesar ciphers.

To encrypt a message, you need to use a keyword and apply each shift value from the table to each letter of the message. The resulting encrypted message is a series of Caesar ciphers with different shift values.

In this adventure, I've hidden a keyword in the channel, and I need you to find it by decoding a message using the Vigenere cipher. The message is: qck_fvzy_14_UYxpuF.

Please note that the keyword is not case-sensitive, and you can use any algorithm or tool to decode the message. Once you find the keyword, please share it in the comments so that others know when to stop decoding.

Good luck, and happy decoding!