How does the author create tension in this story? Abuela reveals that she once loved a boy in her native Cuba. An unknown admirer leaves a love letter each day for Bella at her home. Bella plans to use her detecting skills to solve the mystery of the letters. Bella likes Mateo, a boy who smiled at her once in the library.

the element of the unknown

Explanation:

it appears in this story that the author is building tension by hiding who this is and making it mysterious, this encourages the reader to want to know more

covert: hidden or secret

candid: truthful and straightforward

what i get from these phrases is covert means undercover or underground and that's where the flower is in april. on the other hand, may is the month where flowers start to bloom and thats the reason why candid is being used as a word to describe the blossoming period of a flower.

hope this answer you.