[s1e7] The Chrome Car -

It allows Tulip to see and speak directly with her reflection, who eventually reveals herself as a sentient being named Mirror Tulip (or M.T. ).

Later, it is used as a tool to help M.T. evade the Reflection Police (Mace and Sieve), who hunt reflections that try to live independently from their humans. Episode Impact [S1E7] The Chrome Car

M.T. becomes the main protagonist of Infinity Train Book 2. It allows Tulip to see and speak directly

This episode is a major turning point for the series, as it: evade the Reflection Police (Mace and Sieve), who

The mirror acts as the conduit for Tulip and M.T. to physically swap places, allowing M.T. to enter the "Prime" world and Tulip to enter the "Mirror World".

In the seventh episode of Infinity Train Season 1, titled the "helpful piece" is a small, reflective handheld mirror that Tulip uses to interact with her reflection. Role of the Helpful Piece