The escape room isn't entirely linear so will be split into Lobby/Library, Hall of Riddles, and the Lab.

Lobby/Library

The 4 chests:

Dice Chest

Tiny hint - Look towards the fireplace from the corners of the stone floor.
Chunky hint - The dice is hinting towards the 4 dice that surround the central fire place. Stand on each of the 4 dice and look into the fire place. The floating spheres will form numbers. The dice numbers on the floor correspond to the order that the floating numbers are entered into the chest lock.

Photo Chest

Tiny hint - Do any of the faces in the small photo look familiar to the large paintings?
Chunky hint Underneath each of the paintings on the wall is a number. But only 3 matter. The 3 paintings that correspond to those shown in the photo next to the chest. Input their numbers left to right as shown in the small photo.

Plant Chest

Tiny hint - Try the library.
Chunky hint - Hidden in the library are 4 plant pots with coloured dots on them. The number of dots is the number to be inputted into the lock. The order is dictated by the coloured wxyz on the plant pot adjacent to the chest.

Blue book Chest.

Tiny hint - That book has a bright blue spine. I wonder if there is another somewhere?
Hidden in the library is a book with a bright blue spine identical to the book next to the chest. This book will have a 4 digit code on its front to unlock the chest.

Letter Block Table

Tiny hint Look to the 4 chests in the lobby.
Chunky hint - The 4 opened chests reveal 4 letter blocks to be placed in their correct order on said table. Chests are to be read from left to right

Find the book on doors

Tiny hint - A book is clearly marked with a door on its spine. Follow the path of books on the floor of the library.
Chunky hint - This book is found in the left bookcase of the left most aisle of the library at roughly chest height. It has a door on the spine.

Pumpkins

Tiny hint - Book on doors will make this clearer.
Chunky hint - Once you've found the book on doors, you can drag the three pumpkins into the newly opened room onto the pumpkin tile that matches the tool inbedded in the pumpkins head. This will lift 3 chests that give you a code to open a small chest in the lobby with a small pumpkin inside it and a key.

Toy box

The key from the pumpkin box to the right opens it. The large key from the toy box opens the similarly large keyhole nearby.

The Lab

The three items to add

Tiny hint - The three items to put in the cauldron are found on the shelves in the same room. Any order will work.
Chunky hint - 3 items are to be placed into the cauldron. The 'venom' is the jar with a snake on it. The 'chemical that removes colour' is one of the bleach looking bottles on the right. Some reject, some work, I just chose the ones that felt right to me so have a play! The 'execution by electricution' is the small blue viles with a lightning bolt on them.

Opening the key box

All 3 items placed in any order will reveal a skull vile to rise from the pit with a sparkle! Use this on the key box to open it.

Hall of Riddles

Basic premise - The items to answer the riddles are found in the coffin in the centre of the room. Place them on the table underneath the riddle plaque. A correct answer will be locked in place and met with some sparks! how fun!

I have cities but no people, forests but no trees, and oceans with no water.
Answer - Map

Thirty men and only two women, but the women are the strongest. They are all dressed in black or white and they can fight for hours.
Answer - Queen chess piece.

When I am skinny I am fast, but when I am fat I am slow. But I'll still delight you from your eyes to your nose.
Answer - Candles

I have a ring but no fingers. I used to stay still all the time, nowadays I follow you around.
Answer - Mobile phone/cellphone

Kings and Queens may cling to power, and the jesters may have their call. However, I can defeat them all.
Answer - Ace playing card

I am pronounced as one letter, written with three. I come in blue, black brown or grey. Reverse me and I am read the same way.
Answer - Eye

My clothes come off when you put on your clothes. However, I get them back when you take your clothes off.
Answer - Clothes Hangar

I have hands but no arms. I have a face but no head.
Answer - Clock