The Forever Reliquary

Publisher's blurb:

The heroes must hunt for an icy comet hurtling through the void, the supposed home to a secret monastery dedicated to the insect goddess Hylax. Once there, they must work to gain the inhabitants' trust by undertaking a series of trials. If they succeed, they will gain access to a powerful artifact that will aid in the battle against the ravenous, alien Swarm! But before the monks can entrust the item to the PCs, the comet is besieged by waves of Swarm creatures eager to get the artifact for themselves!