The cipher is
a Caesar shift of 7: hence "of" becomes "vm", "the" becomes "aol", etc. (Notice how common "vm" and "aol" are in the ciphertext.
The cursive ciphertext is
Vul wyljvjpvbz Qlhu Svbpzl "Zjvba" Mpujo dhz mhy holhk vm hss vm aol vaoly mpyza nyhklyz ha aol Thfjvti zjovvs pu Ohywly Sll'z uvcls Av Rpss h Tvjrpunipyk. Zol jvbsk hsylhkf ylhk huk dypal jbyzpcl, lclu iba oly alhjoly, Tpzz Jhyvspul, zovdlk uv hwwyljphapvu mvy aolzl zrpssz.
The deciphered plaintext is
One precocious Jean Louise "Scout" Finch was far ahead of all of the other first graders at the Maycomb school in Harper Lee's novel To Kill a Mockingbird. She could already read and write cursive, even but her teacher, Miss Caroline, showed no appreciation for these skills.
And how's THIS for illegible?