Publisher's blurb:
In ancient days, a great emperor held a magnificent hoard of treasure, the wealth of his empire, in a grand vault. To protect it, four great keys were made, each a valuable artefact of its own merits. The hoard could only be accessed if all four keys were used together, and so each was secured in a smaller vault of its own, spread across the empire. Each was under the custody of a great baron, guardians now long lost to the mists of time. Once a year the keys would be assembled to review the imperial hoard and add the annual profit to it. That hoard is long lost, but the vault that housed the Sapphire Key has been found! Some are rumoured to have tried but none have yet found a way into the vault, unable to get past the outer door. No doubt great wealth awaits the worthy who can find a way in!
This adventure is designed for four characters of level 1-2.