The word odyssey means long journey. It also means an intellectual wandering or soul-searching. Based on the dictionary, Merriam-Webster, this term was adapted from the epic poem, The Odysseus by Homer. This word was included in the 1886 version of the dictionary.
D)MRS. PETERS (starts to speak, glances up, where footsteps are heard in the room above. In a low voice.)
This stage direction most adds to the suspenseful tone. When Mrs. Peters pauses her dialogue to look up, it shows that something isn't quite right. After the footsteps are heard, Mrs. Peters continues speaking, but in a low voice. This indicates that what she is saying isn't meant to be heard by everyone. The secrecy creates a suspenseful tone. Merely speaking the other woman, shaking one's head, or arranging pans do not give the feeling of suspense.
A coffin????????????? lol