Free Speculative Fiction short stories online.
Read it here: "The Dragon's Tears"
By Aliette de Bodard
In Electric Velocipede
Huan Ho's mother is very ill. There is very little hope left for her but she has managed to hold on until the end of the year. At the end of each year three riders come forth and take what they want. The riders have existed for as long as mankind has, but no one knows who they are. They take whoever and whatever they please, and they go.
Huan Ho knows two things, though. On the night when the riders come out, it is possible to enter through their door and seek among their treasures. Secondly, and most importantly, one of those treasures is a flask containing the tears of a dragon. Those tears will surely cure his mother.
To find them, though, he must evade the riders.