Dragon Research

Dragon Research is a Miscellaneous Quest in The Elder Scrolls V: Skyrim.

Prerequisites

 * Complete Alduin's Wall.
 * Recruit three followers into The Blades.
 * Go kill a Dragon at Esbern's command with your new recruits.

Summary

 * Bring Dragon Scales and Dragon Bones to Esbern.
 * Drink Esbern's Potion.

Walkthrough
After recruiting three followers into the blades, Delphine will tell you to talk to Esbern about doing some Dragon Hunting. Do so, and go kill the dragon Esbern pointed to you with your new Blades. Return to Sky Haven Temple and Esbern will ask you to provide him Dragon Scales and Dragon Bones for his research (one of each). You can immediately give him some if you have any from the dragon you just kill, or you can go out and find a dragon to kill. Upon obtaining the scales and bones, Esbern will give you "Esbern's Potion". Drinking it will grant you the Dragon Infusion ability, a permanent 25% resistance to the melee attacks of dragons.

Bugs

 * Currently, Esbern's Potion does not add the intended effect. Confirmed on PC, PS3 and 360. PC users can add the perk manually using the console by typing "player.addspell f5ffa".
 * It seems that Esbern will occasionally direct you towards a dragon to kill, even if you have already killed it before obtaining the quest. The quest is unable to be completed if this occurs, seeing as the dragon is already dead.
 * You can complete this quest without actually having it. Recruiting 3 followers is, hence, unnecessary. Complete Alduin's wall, kill the dragon. A new miscellaneous objective will tell you to return to Esbern. However, he might not actually have any dialogue options about this objective. This could be due to Paarthurnax still being alive.