In an alternative reality that is very similar to our world, a person's physical size is directly proportional to their wealth. The poorest of the poor are as small as rats, while billionaires are the size of skyscrapers. Warner and his sister Prayer are destitute—and tiny. Their size is not only humiliating but also dangerous: day and night, they are exposed to mortal dangers that larger, wealthier people never have to consider, from the threat of being attacked by cats to the risk of their home being overlooked and stepped on. There are no cars or phones small enough for them, nor schools or hospitals—it makes no sense when no one so small has purchasing power and when employed doctors and teachers would never fit into such tiny buildings. Warner and Prayer know that their only hope is to grow bigger, but how can two little ones survive in a world built against them? Brilliant, heartwarming, and funny, this is a social novel for our time.