How can i change a sentence to question

What is the source of tension in this excerpt? ellery searching everything insects filling the light fixtures ellery standing on the desks louise carpenter whispering

In the space below, write a 800-1,000 word fictional narrative with an engaging hook, well-developed characters, conflict, and resolution, effective dialogue, examples of suspense and symbolism, and proper use of creative punctuation, including quotation marks, commas, and dashes.

Best one will be the brainiest ! what is the summary of the book open window by saki?