Final answer:
The provided excerpts from 'Drama on the High Seas' do not mention Emily or her involvement in catching a stowaway; they focus on Mrs. Ebbling and her experiences.
Step-by-step explanation:
In the excerpts provided from the book 'Drama on the High Seas', there is no mention of Emily being involved with catching a stowaway. The passages primarily center on interactions with Mrs. Ebbling, the chief engineer's sick wife, and the events occurring on the ship during their journey.
It seems Mrs. Ebbling has quite an interesting past, with ties to sailing and the ocean, and she appears to be the main female character in these excerpts. Unfortunately, without more context or a specific reference to Emily catching a stowaway, it is challenging to provide a detailed explanation on that particular event.