Sister Pact / Shh!

Sister Pact: Kick tries to help his sister get into the prestigious Poise Posse club after he had ruined her sister's entry chances at the club's auditions last year and now must earn back Brianna's trust.
Shh!: Kick must research a strange creature called a Nuzzlet given to him to make a school report, but here's the rub the book he needs, and the only place quiet enough for him to do his report are both in the... Library.