Post-canon modern-fantasy Daria fanfic by The Angst Guy. The story was based upon an artwork by fan artist Kemical Reaxion, showing Jane Lane as a faerie creature.
Warning: The following may contain plot or ending details.
Jane Lane takes part in a science experiment that brings out a completely unexpected paranormal ability to transform herself into a faerie creature, much to her friend Daria Morgendorffer's shock and amazement. The talent is similar to astral projection, in that Jane's body remained in a sensory deprivation tank, asleep and dreaming, while "Tinker Jane" appeared in Daria's bedroom and wandered around with her at night.
As a faerie, Jane talks in rhyming couplets, giving her dialog a playful feel.