The Assumption Novena has two versions; both are efficacious.
The Solemnity of the Assumption of the Blessed Virgin Mary is August 15, and is a Holy Day of Obligation
You can begin the Novena today, and pray these prayers daily for nine days
‘See the beauty of the daughter of Jerusalem, who ascended to heaven like the rising sun at dawn.'
Novena to the Assumption of the Virgin Mary, I
Mary, Queen Assumed into Heaven, I rejoice that after years of heroic martyrdom on earth, you have at last been taken to the throne prepared for you in heaven by the Holy Trinity.
Lift my heart with you in the glory of your Assumption above the dreadful touch of sin and impurity. Teach me how small earth becomes when viewed from heaven. Make me realize that death is the triumphant gate through which I shall pass to your Son, and that someday my body shall rejoin my soul in the unending bliss of heaven.
From this earth, over which I tread as a pilgrim, I look to you for help. I ask for this favor: (Mention your request).
When my hour of death has come, lead me safely to the presence of Jesus to enjoy the vision of my God for all eternity together with you.
Novena to the Assumption of the Virgin Mary, II
Majestic Queen of Heaven and Mistress of the Angels, you received from God the power and command to crush the head of satan. Therefore, we humbly beg of you, send forth the legions of Heaven, that under your command they may seek out all evil spirits, engage them everywhere in battle, curb their pride, and hurl them back into the pit of hell. “Who is like unto God?”
With firm confidence we present ourselves before you, our most loving Mother, afflicted and troubled as we are, and we beg you to let us understand the love you have for us by granting this petition, if it is according to the Will of God and profitable for our salvation: (mention your request).
Good and tender Mother, you shall ever be our hope and the object of our love. Mother of God, send forth the Holy Angels to defend us and drive far from us the cruel foe.
Holy Angels and Archangels, defend and keep us.