Surprise!surprise!it's Grandfather's Birthday

Come to Grandfather’s birthday party! Meet him, his seven grandchildren, their parents, grandmother, and pets (including a chicken).
The whole family is waiting for Grandfather to come home. Grandmother has lined up the children in order of age, the youngest at the end. “And don’t forget,” she says, “when you shout ‘Surprise!’ shout loudly. Your grandfather’s a bit hard of hearing.”
And that is just the beginning of this hilarious, loving, and full-of-surprises birthday party. Happy Birthday, Grandfather!