Quests of Doom IV: In the Time of Shardfall (5e)
In the Time of Shardfall by Michael Curtis
In the Time of Shardfall is an open "seek and destroy" adventure intended for 4 to 6 characters of 5th to 6th level. The adventure involves a relic from the prehistoric past - a mystical prison containing a powerful proto-dragon and other creatures from long ago - that has been flung forward in time to arrive at the characters' current era. The prison¸ an enchanted pane of obsidian called the Akaata¸ fractures upon arrival¸ breaking into several shards that fall to the land below. Soon¸ the prehistoric menaces trapped within wander out of their broken prison to threaten the realm. The characters must search for the five shards and destroy them and their former prisoners¸ then confront the now-free proto-dragon before it recovers its full strength.