You begin in the hospital. Phone gives you light and serves as a map. On the desk on right you find an envelope. Collecting them isn't obligatory.
Second envelope is in the left corner of the room.
Head upstairs. In the left corner there you find another envelope.
The last note is on the cupboard at the end of the corridor.
Return to the ground floor and head to the corridor on right. At the desk, you find Glowstick. It helps you find hidden items.
Go through the door and open highlighted desk. Then go through another door.
From now on, you're all by yourself. Corridors are randomly generated with every start of the game. Your first task is to find a room with white drawings on the walls and floor and then exit with a similar white symbol. In the room with inscriptions you should notice a flying item, which is a key to the closed passage. On the first level, it's a teddybear. It appears in the room only after collecting at least four remnants (envelopes), which you can find in this level. Some of them are also attached to the walls, highlighted with a red dot.
Marker "Threat" which is in the right bottom corner, will appear when a witch shows up. At the first level, most of them won't hurt you and you can even approach them and they disappear. Bar fills with each collected secret. So the best is to find a passage and place opened by key firstly, when the danger is low.
When phone starts to flicker, it means that there is a Witch nearby. You can now run away or defeat it with lit flare in your hand.
When you collect four remnants, you can pick up a teddy bear. From now on, Shadows will appear very often. When you hold an object, you can't use a flare, so it's best to memorize the exit path and run the quickest you can. If you find a Witch on your way, you can only doge her. Try run next to her or move back and wait for her to disappear.
When you get to the passage, it's enough to put your hand with a key on it. Passage always lead to the safehouse, where you can catch a breath. You find there also a lot of remnants. There is also always something to do before you move on. In this case, you're in the warehouse.
In the passage you always have to do something. In this warehouse, you need to find a current switch and open the door. On the next desks you find two envelopes.
There are three envelopes left here. One on the cardboard, after turning left again. After next turn, you see a witch on fire. When she disappears, you notice another envelope. The last one is in the corner behind another shelf.
Now locate the red light on the wall. Head for it. You find a chest with ropes. Move it towards remaining chests and climb up to get onto the other side.
Now activate the switch under the red lamp.
Push another chest, climb up. You get to the first room with a button at the desk. Press it and the door open. Go through it and to the end of the corridor. On your way you find two more envelopes.
Hospital has also the second level. This time, you have to find scissors. But this part of the building is divided onto two parts, between which you can move only through the upper floor.
When you find scissors, head for stairs and to the bottom level. There you find a passage.
Behind a passage you find a small flat. Behind a desk, on left, you find two envelopes.
The next secret is on the heater in the corridor. The other one lies on the toilet behind a door on the left side of the corridor.
The last one is in the fireplace in the room against the toilet.
When you collect all envelopes, approach the desk and use the lamp.
Moving it discovers a hidden passage behind a library.