The "Gloria Scott"

In "The Gloria Scott", Sherlock Holmes recounts his first case, involving a cryptic message delivered to his friend's father, Elias Openshaw. The message triggers a heart attack and reveals a dark secret from Elias's past—a mutiny aboard a convict ship, The Gloria Scott. As Holmes uncovers the truth, he demonstrates his budding genius for deduction, setting the stage for his future as a detective.