You can return to the tower but instead of going back towards the top of the tower where you faced the stormhawk, you are likely to want to Elden Ring Runes leap onto the adjacent rooftop with the pillar crumbling. You'll need to climb that pillar to reach the ledge above you, then walk up it, and you'll discover another roof that can be climbed.
This roof is filled with soldiers, therefore be cautious on how you approach. I would recommend starting with killing the sleeping soldier to the right, and then you should hide behind the tower in order to protect yourself from the three crossbow-wielding soldiers on the left. Then, let them attack you and take them down one at a time. When they're all dead, climb up to the top of the tower over you and get you the Claw Talisman.
Retrace the ladder, then retrace your steps until you reach the rooftop with the crumbling pillar on it. There is a gap between the roof and that where you fought the stormhawk. Heal to full HP then drop down to the below courtyard where you will find the Stonesword Key door and a Somber Smithing Stone. Use that Stonesword Key you recently got to open the door but be careful of the two axe soldiers that are waiting in the. Then, draw them out into the courtyard one by one should you require some space to maneuver around. Their slam attacks are slow, which means you can easily get bnehind them and take a back stab. Within the room, you'll discover The Hawk Crest Wooden Shield, Misericorde, and Iron Whetblade.
You can go back to the courtyard before going through the opposite entrance that you've never explored. Inside , there is a dining area which is guarded by a Grafted Scion, but we do not wish to engage with it, so hurry to the opposite side of the room . There is a tiny room on Elden Ring Items for sale the opposite side. It is home to two dogs as well as The Crimson Hood atop a pile of bodies.