Plus OneBy: John Hare When Agnes decides to host a tea party, she finds it hard to shake a most unlikely guest . . . and his even more unlikely friends. Agnes is new to town and wants to make friends, so she invites some girls in her class to a fancy tea party. When there is a knock at the door, she expects to see themnot Dave from next door. This isn't what she had in mind at all. . . "The invitation says plus one. This means you need to bring a friend. And