The Medical Centre – Different traps Simon behind a transfusion apparatus that stays shut until actual blood flows through it. To escape, collect five bags from the wards, place three in their matching wall slots, and feed three compatible donors into the container at the centre of the Transfusion Door.
Quick answer: Hang Sarah Watson in the 2nd left slot, Matthew Clark in the 3rd left slot, and George McEwan in the 4th right slot. Then connect H.M., T.F., and S.W. to the Ordell container.
All blood bag locations in the Medical Centre
There are five bags in this area, with different jobs. Alan Duncan and Lesley Greer supply the transfusion machines that lift the shutters to Ward S.W. and Ward D.P.; save the remaining three for the wall.
| Blood bag | Type | Location |
|---|---|---|
| Alan Duncan | AB− | Southeasternmost room, vent access only |
| Sarah Watson | A+ | Ward S.W., Room 05 |
| Lesley Greer | B− | Ward S, Room 12 (via Room 18 ladder) |
| George McEwan | AB+ | Ward D.P. basement, Room 10 |
| Matthew Clark | — | Ward D.P., Room 03 after the elevator drop |
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The layout of the wards, basements, and vents can be tricky to retain, so pick up the map before setting out. Follow the route below for the shortest safe trip, and use the central telephone to call 100 and save between steps.
A large enemy roams this floor and contact means instant death for Simon. Avoid combat and move stealthily; carry IV Bags in case it catches you.

Using this ladder causes it to break, permanently closing off Ward D.P. Collect any items and collectibles in the ward before climbing.
Blood bag slot placement on the transfusion wall
At the transfusion wall, match the last three bags to the patient assessment clipboards posted by the stations. Use each clipboard’s injury details, then count the wall slots for its station.
| Blood bag | Slot | Assessment clue |
|---|---|---|
| Sarah Watson | 2nd, left wall | Head wound, pulse over 90 |
| Matthew Clark | 3rd, left wall | Small cut on the forehead |
| George McEwan | 4th, right wall | 2nd- and 3rd-degree burns |
With all three hanging correctly, pull the transfusion switch next to the locked metal door. Blood runs through the frame and the heavy double doors grind apart, exposing the circular dial lock on the wall beyond.
If no prompt appears, check the wall switch to the left of the doors; it isn’t mounted on the doors.
Transfusion Door puzzle solution (H.M., T.F., S.W.)
The Transfusion Door puzzle works like a plumbing diagram built around a medical chart. Patient initials mark six outer nodes, while short red-pipe sections occupy the rings between them. Turning a ring shifts those sections; a connection counts only when a continuous route leads from an outer node to the Ordell container in the middle.

Don’t try to link every node. The machine calls for three donors whose blood types are compatible, so the required combination is predetermined.
| Node | Blood type |
|---|---|
| H.M. | O− |
| T.F. | O+ |
| S.W. | A+ |


The bags around the room identify each patient by initials and blood type. Check their labels to verify the three donors instead of guessing at the dial.
How to confirm the door is open
A correct setup shows an unbroken red route from each of the three outer nodes to the centre. The container fills, and the heavy door opens by itself onto a dark, barred corridor; walking through triggers a save.
If interacting does nothing, at least one of the three lines still fails to reach the container. Clear the selection, then trace each route from its node toward the centre to spot the ring with a disconnected pipe section.
The related date wheel door (18, January, 1996)
Townfall uses a second rotating-wheel lock much earlier, on the bathroom door in the room you reach after calling 100 from the Town Square phone booth. It looks like the Transfusion Door but takes a date instead of a flow path, entered from top to bottom. On Normal difficulty the answer is 18, January, 1996.


For either dial lock, the clue is in the room with the puzzle: check the room service card for a year, or the label on a wall-hung bag for a blood type.






