to Room 46

Tomb

1. Great Hall (E) OR Secret Garden (W) OR Greenhouse (S) + Broken Lever
2. Pool
3. Pump Room (reservoir dock level)
4. Tomb
5. (Mechanarium (W))

Basement Key

1. Great Hall (E) OR Secret Garden (W) OR Greenhouse (S) + Broken Lever
2. Pool
3. Boiler Room
4. Pump Room (reservoir dock level + fountain empty)
5. Antechamber -> Fountain

Foundation

1. Foundation (+ activate elevator)
2. Great Hall (E) OR Secret Garden (W) OR Greenhouse (S) + Broken Lever
3. Antechamber
4. Tomb OR Pool + Pump -> Fountain

Power Hammer

1. Sledge Hammer + Broken Lever + Battery
2. Great Hall (E) OR Secret Garden (W + E) OR Weight Room (S)
3. Tomb OR Antechamber -> Pool + Pump -> Fountain