Rainbow Tinseltail (called Bo) has never actually seen a dragon, but when things start going missing from Sparklegrove School for Unicorns all clues seem to point to a dragon pup called Scorch--but when Scorch does not return to the dragon caves, Bo and her friends become worried that he has gotten lost in the forest and they set out to find their new friend.

When Eva Wingdale sees something large and white flying above her she is convinced that it is a ghost, although most of the other owls just laugh at her--until something large and heavy and white lands on the school roof.