Warning : May contain spoilers
Along with the spectacular SoTDL rulebook and sourcebooks, Schwalb Entertainment released a ton of short adventures to support the game, their level of quality varying wildly from good to truly embarrassing. The Slavers' Lash is... not one of the good ones.
Have the PCs start the campaign in chains is a respected trope of fantasy gaming, because it works : it puts the PCs in a situation where they face hardship together and have to work together to escape. It's the perefect setup to build a team.
In The Slavers' Lash, the PCs start in chains as part of a slave caravan and have to escape and... that's it. The generic plot you already started to build in your mind from reading the previous sentence is the exact plot of this adventure. There is nothing specific about it, no twist, no memorable NPCs, no flavour whatsoever, no suprise. It's basically the default adventure that came with the frame.
So, re-read that premise, spend two minutes thinking about and write down what came to mind. You just saved yourself two bucks.
[2 of 5 Stars!]