So far, there are two related short stories from the Thieves’ Guild universe:
Thieves’ Guild: Five years ago, in simpler times… (NG and Devon) As it says, five years ago at the guild, when Devon had just been persuaded by NG to leave the Assassins’ Guild and join the Thieves’ Guild. Set when LC is around 18, just after he ran the tab to Yarrimer.
Taylorson (in Harvey Duckman Presents… Volume 1) This is set during Book Six (Arunday’s Convergence) and refers back to the original incident of the ship crashing on Kheris, ten years ago.
More short stories will follow in 2020.