Curse of the Genie's Ring

When Jinny and her brother, Tyrone, find a ring in Miss Morgan’s attic, they have no idea about the terrible danger they’re in. Tyrone awakens a genie, and once he’s made one sneaky little wish, he can’t stop!
Can Jinny and Cooper save Tyrone before the genie’s curse traps him forever? And can Cooper resist using the ring to wish for a cake as big as a house?

Don’t do it, Cooper!