As the final days of summer heat up, so does a sibling showdown over a high-stakes lemonade stand business. Jessie and Evan Treski compete to see who will make $100 first off of their respective lemonade stands. Full of surprisingly accessible and savvy marketing tips for running a stand (or making money at any business) and with clever mathematical visuals woven in, this sensitively characterized novel subtly explores how war can escalate beyond anyone's intent.