The game tells a story of a party of up to five valiant adventurers hired to rid of the kingdom of Ymros of the evil sorceress Siriadne and retrieve the titular magical item that she stole.
For two centuries the small island of Ymros enjoyed eternal spring thanks to the enchanted Shard of Spring, a piece of the long-lost legendary Life Stone. The peace of this land was shattered three years ago, when the avaricious enchantress Siriadne laid waste to the crystral shrine and captured the Shard. With the threat of the Shard's destruction, the witch extorts ruinous tribute from the people of Ymros to her at the Tower of Ralith. Anyone who can end her tyranny will be a hero for all time to come; human, dwarf, elf, troll and gnome adventurers (each of whom can be either a warrior or a wizard) are up to the challenge.
Source: Wikipedia, "Shard of Spring", available under the CC-BY-SA License.