Below two droppers contain answers, do not expand them if you want to avoid spoilers

Contains Hints (Use only when you need)

Riddle 1 - An alluring false perception, often created by the deception of the senses.
Riddle 2 - An intense emotion elicited by impending danger, pain, or harm, either real or imagined.
Riddle 3 - A day of joy and celebration, marking the anniversary of one's arrival into the world.
Riddle 4 - A stuffed toy, often used as a comfort object or decorative item.
Riddle 5 - The state of feeling sad or alone due to a lack of social relationships or companionship
Riddle 6 - A bodily fluid that circulates through the heart, arteries, veins, and capillaries and carries oxygen and nutrients.

Puzzle 1 - The answer is a background element, an object used in dark magic.
Riddle 7- The practices or techniques that involve using supernatural powers for evil or malevolent purposes.
Riddle 8 - A person who is related to another person through blood or marriage.
Puzzle 2 - Spell out the clues you see on the screen.
Riddle 9 - A device used for protection, defense, or security, and held or mounted in front of the body for protection against attack.

Riddle 10 - The state of being united or joined together as a whole.
Riddle 11 - To keep divided/ apart.

SPOILER Contains Answers

Riddle 1 - ILLUSION (A false image, a lie, or so it would seem)
Riddle 2 - FEAR (A haunting emotion, that won't let us rest our head.)
Riddle 3 - BIRTHDAY (A day of celebration/ A separation from age)
Riddle 4 - SOFTTOY (A friend to hold tight, a soft form to hold near/ a part of childhood days)
Riddle 5- LONELY (a separation from the crowd/ It's a lack of connection)
Riddle 6 - BLOOD (It's a symbol of family, a sign of connection,A precious fluid, that demands protection.)
Puzzle 1 - 8 (Amount of pins pierced in the skull)

Riddle 7 - DARKARTS (It's a practice of shadows, of spells, and of charms,A call to the void, an ominous alarm)
Riddle 8 - RELATIVE (They're family by blood, a bond that we share/A love that's conditional, often causing pain)
Puzzle 2 - 543 (Numbers of letters in the spellings of Earth, Moon and Sun)
Riddle 9 - SHIELD (A barrier of defense, a separation from harm,A protector of life, a physical charm.)
Riddle 10 - UNITY (A bond of togetherness/A union of spirits, a joining of life)
Riddle 11 - SEPERATE (There is a spelling error) (A divide in the mind, a split in the soul/ It's a loss of unity, a breaking of ties,)

"Venture forth into the mystical forest, shrouded in darkness and magic's hold.

In search of thy lost sister, embark on this eerie quest, so bold.

Unveil the secrets that the woods doth keep, and bravely face the trials untold.

With cunning and bravery, be reunited with thy sibling, as love and family take hold."