Final answer:
The question asks about specific sounds from beneath a tarp, but the provided excerpts do not contain information about such sounds, offering instead a variety of different noises described in unrelated scenarios.
Step-by-step explanation:
The question 'What terrifying sounds came from beneath the tarp?' is referencing specific auditory events within a narrative context. While the excerpts provided include different sounds described in various scenarios, such as the roar of lions, a scream, the growl of thunder, and other natural and unnatural noises, they do not directly answer the question regarding the specific source of the sounds beneath the tarp.
Without additional context, it's impossible to determine which sounds are specifically emanating from beneath the tarp from the excerpts given. The sounds described in these excerpts range from the rumbling roar akin to that heard in a sea-shell, to rolling sounds of lions, to the disturbing clutter of warfare—the clash of shells and the horror of the battlefield.