The Price of a Favor: Every Gift from Magic Asks for Something Back

In Lena Wren's quiet, rule-bound town, magic is common but careful. It helps with small problems. A stuck zipper. A sore ankle. A fix that works if you give up something tiny. A habit. A memory. A comfort you barely notice.
Lena agrees once. Then again. Soon, everyone does.
Magic spreads through classrooms, playgrounds, and homes. The costs add up. People forget small details. Routines slip. The town still runs, just not as smoothly. Lena begins to see what others miss. Magic never forgets a favor, and it always chooses the price.

When someone she cares about needs help, Lena must decide. Should she pay the cost herself, or let someone else lose something instead? And what if what she gives up changes how she thinks or acts?
By slowing down and paying attention, Lena starts to learn the rule behind every favor. Some help is easy to accept. Every gift leaves a trace.
The Price of a Favor is a middle grade fantasy about choices, responsibility, and noticing hidden costs. What would you trade for an easy solution?