The Legacy of the Tareks; book 2 of The Black Blade Trilogy

On a warm spring day, Tremone, Ellira and Ornso decided to set out on a camping trip. A little time away from the humdrum of their every day lives seemed like a good idea. When a storm chases them toward a cabin in the wilds, they find their lives changed forever.
The three companions did not realize they were answering a call sent through the lands. They did not know their feet were following the will of the colors. As they arrive at Asila's cabin, a strange spell overcomes them. They are about to learn a history long forgotten and discover that their destinies were tied together since long before they were born.