From publisher blurb:
Join the Hunt for an Elusive Traitor
A member of the Brelish spy network has stolen a powerful magic sword and gone rogue. In pursuit of the fugitive are operatives from a number of other factions intent on recovering the traitor, his stolen weapon, or both. As the slippery agent flees across Khorvaire, only the most relentless heroes will stay on the intrigue-laced trail and capture their target.
"Whispers of the Vampire's Blade" is a stand-alone adventure for the Dungeons & Dragons game that will immerse your characters in the Eberron campaign setting. Designed to challenge 4th-level D&D heroes, it hurls them across the continent of Khorvaire with action-packed overland and aerial travel.