Alagner's Storehouse

Alagner's Storehouse structure which sits on the northern part of the island of New Magincia, it appears in Ultima VII.

Description
Fearful that his enemies would uncover his research regarding them, the sage Alagner kept many of his intellectual writings and notebooks in a carefully secured storeroom, whose inner sanctum was defended by a battery of illusions, magical fields and puzzles. In addition to this, the room which contained the sage's personal notebook was kept in an elevated room without stairs, forcing those wishing access to construct a makeshift ladder or staircase.

Solution

 * 1) Open the storeroom's doors and enter the one on the left. This will teleport you to the vicinity of the right door.
 * 2) Unlock the door in front of you and enter the next room.
 * 3) Flip the switch to the upper left.
 * 4) Pick the lock of the door in the hallway.
 * 5) Enter the room and flip the switch to the south. (There is a magic bow you can take, if you wish.)
 * 6) Step onto the teleporter of the newly opened room. This will teleport you to the left side of the storeroom.
 * 7) Walk near the door. This will teleport you to the right side of the storeroom.
 * 8) Walk around the wall and step on the teleporter to the right. This will teleport you back to the left side.
 * 9) Walk back to the central teleporter and walk around it. Walk north through an illusionary wall.
 * 10) Take the chairs away from the table and put down a crate to form a step that you might walk on the table. Once there, create a staircase of crates to get to the elevated room.