Children’s Chapter Book Query Letter

I need a concise, industry-standard query letter for my children's adventure chapter book. The manuscript is complete; what’s missing is a one-page letter that introduces the story, hooks a literary agent quickly, and presents me as the author in a clear, professional, and straightforward voice... (Budget: ₹600 - ₹650 INR, Jobs: Book Writing, Content Writing, Creative Writing, Editing, Ghostwriting, Market Research, Publishing, Writing)