Answer: C) Whatever his faults, Vondermoot can always be counted on for a seamless story that captures readers’ attention from page one.
Step-by-step explanation: the tone of a sentence or a text is the author's or speaker's attitude towards the audience, the subject or even the characters. An objective tone, is a tone that expresses facts and doesn't express the speaker's opinion. From the given options, the one that represents a mostly objective tone is the corresponding to option C, because the other ones express strong opinions (like "eerie masterpiece", "spine-chilling situation" and "who are by far the best literature fans in the world").