The characters have a lot more money at the end of the adventure than they did at the beginning. Their 200 silver astrological coins and 100 gold astrological coins are worth about 1,600 shillings. How much they’re worth specifically will depend on how they negotiate to sell them or convert them once they return to civilization. They also have other treasure that they can potentially sell or benefit from:
1. The vial of suspended silver found in the tower laboratory.
2. The two golden busts found in the spider-webbed tower.
3. The spellbooks and other scrolls found in the Gemini room.
4. The various magical powders, and the rock, found in the Pisces room.
They can keep, trade, or sell any of it. It’s up to them. How much they get for what they sell will be a matter of role-playing.
If they divvy their new money up, they could each use it to buy better equipment—better armor for Will and Sam, for example. Dividing the treasure is entirely up to the players. They might divide it equally; they might keep some of it in a communal pot for future group purchases.
They could also, as often happens at the beginning of movie sequels in which the protagonists made lots of money in the previous movie, decide to have lost all or some of that money in exchange for more experience points. For each silver coin’s worth of money lost, the group gets two experience points. So if they were to stipulate that 1,000 shillings were lost, the group would get 2,000 experience. Each character would gain 500. This would be almost enough to bring Sam to third level! Everyone would be within reach of third level with only a little mojo use during their next adventure.
It can be very exciting to be in a losing or evenly-matched battle, use mojo, level up, and suddenly gain new abilities.
But there’s a lot to be said for keeping the money to buy equipment, too. As with everything else in the game, what your characters do is your decision.