Jake's Lunchbox Surprise

"JAAAAKE!" Harriet shouted upstairs to Jake, "I'm packing your lunch this week, it's delicious!" But will Jake's lunch be delicious..?
Jake is a mischievous older brother and Harriet is his unwitting little sister. Jake loves to see his sister squirm and is enjoying every minute of it. However, Harriet has had enough of Jake's constant pranks. Can she pull off the biggest surprise yet and teach Jake a real lesson?