There's a cat in Robyn's bedroom: a small, long-haired grey kitten, with a white smudge over its eye and a bib under its neck. She wants to keep it, so she hides it from her mom. But in their small apartment a kitten can't stay hidden for long. Their landlord doesn't allow pets, so Robyn's mom says they have to put it out. The cat doesn't want to go: it hangs around outside their building for days, until the snow starts to fall. When Robyn tries to find it a new home, however, she learns that what's best for her is not necessarily what's best for the kitten. Robyn's Best Idea is the story of a girl who thinks she can't afford what she wants, and who discovers something that money can't buy.