The Fortress of Shadow

Battle your way through a terrifying ancient fortress trying to rescue a bride-to-be from a dark power that has arisen on Black Mountain. The Fortress of Shadow is a 5E Compatible adventure for a party of adventurers levels 6-9. It can be run for 2-4 sessions, or even as a one-shot with some planning, and will take adventurers up 1-2 levels of advancement. - from the publisher's blurb