Find the Illusionary Wall:

Continue down the path after entering the hidden space.
In a room with the "Domain of Dragons" painting, look for Elden Ring Items two torches on the southwestern wall.
Hit the space between the two torches to reveal an illusionary wall.
Proceed to Castle Watering Hole:

Follow the newly revealed path until you find a stone coffin that transports you to the Castle Watering Hole Site of Grace.
Travel Southeast to Recluses’ River:

From Castle Watering Hole, head southeast along the rockface.
Locate the Recluses’ River Upstream Site of best site to buy elden ring items Grace along this path.
Continue along the path, navigating gaps and obstacles until you can cross to another path on your right.