If You Had Stayed

Lavellan had spent years trying to cope with Solas leaving. She had spent that time busying herself with remedial duties around Skyhold and dealing with any other threats that arose. But with a new threat arriving, she finds herself dealing with a power stronger than her last enemy. The Forgotten Ones rise once again, leaving death and destruction in their wake. Stronger powers that not even she can combat. Will she find a way to end their plans before they have a chance to destroy Thedas? Or will she be in their direct line of fire?
With the help of one unexpected elf, last seen years prior before vanishing, they might just stand a chance. If he trapped them once, he can do it again.