Buster Baxter & the Letter from the Sea

Summary
Buster finds a letter in a bottle from a stranded 1960s explorer and believes it is from sea people in the lost city of Atlantis.

Trivia

 * After Buster and Arthur read the letter, El Boomerang can be seen.

Errors

 * When Buster wakes up from a dream, he is wearing his blue vacation apparel.