Collection of 7 bookmarks, made of hypoallergenic metal with plastic details, representing the Horcruxes from the Harry Potter universe. The bookmarks are enclosed in a box/case made of heavy black cardboard, with silver "Harry Potter" logos.

History:
A Horcrux is an object in which a Dark wizard has hidden a fragment of his soul in order to achieve immortality. The creation of a Horcrux is considered the most horrific form of magic, of the worst kind of evil, as it violates the laws of nature and morals, and requires a terrible act such as murder to perform. The first Horcrux was created by Herpo the Wicked (in English Herpo the Foul).Lord Voldemort is the only wizard known to have created more than one (eight counting Voldemort himself).

Although books such as Of Fetid and Very Putrid Magic did not contain any information about Horcruxes except the description that portrayed them as an evil invention, the book Secrets of the Darkest Art, once housed in the Hogwarts Library, provides explicit instructions on how to create a Horcruxes. Due to the terrible nature of the book, Albus Dumbledore hid it in his office; he did not destroy it. The trial is known to include a formula and an evil deed (murder). To divide one's soul, one must commit the supreme evil act - murder - and then enclose a portion of one's mutilated soul in the chosen object. While, in theory, a Horcrux could be anything, Lord Voldemort chose to use objects of great significance or importance. The process renders the remainder of the mage's soul unstable. If the body of one who created a Horcrux is later destroyed, he will live in incorporeal form, although there are methods of regaining a corporeal form. However, according to Horace Slughorn, few would like to live in such a form and death would be preferable. The process consists both in the violation of profound natural laws and of common human decency: those who belong to the human race must not practice such acts on their fellows and the soul must remain Integra and undivided. The subject of Horcruxes is banned at Hogwarts School of Witchcraft and Wizardry.

The making of a Horcrux can be reversed by its creator through genuine remorse for having killed someone, seemingly to the point of being destroyed by it, and it is very unlikely that such remorse can be obtained simply for the purpose of repairing one's soul. Horcruxes can be destroyed by anyone, as the soul fragment's survival depends on the container. Destroying a Horcrux is complicated, but not impossible, and the object must be damaged beyond any possible magical shelter. When a Horcrux is damaged at this point, it may appear to "bleed" (like ink in the case of Tom Riddle's Journal and "dark blood-like substance" in the case of the Ravenclaw Diadem) and a scream may be heard as the soul fragment is destroyed. It has never been clarified why one or both of these reactions only occur during the destruction of some Horcruxes and not all. One of the most foolproof methods of destruction is Basilisk Venom (for which there is only one known cure: Phoenix Tears). . Very few other methods work, such as through magical fusion procedures (for example Fiendfire). It seems that it is possible to destroy a Horcrux with the Killing Curse if the Horcrux in question is animated - as the part of Vodemort's soul contained in Harry Potter was destroyed while he was struck by the Killing Curse in 1998. Albus Dumbledore , Ron Weasley and Neville Longbottom used Godric Gryffindor's Sword to destroy Orvoloson Gaunt's Ring, Salazar Slytherin's Medallion and Nagini, respectively. This was only possible because the sword is a Fey artifact, which can absorb whatever fortifies it. When Harry Potter killed the Basilisk in the Chamber of Secrets, the sword was imbued with Basilisk Venom and became capable of destroying Horcruxes.Harry Potter and Hermione Granger used the Basilisk fangs from the Chamber of Secrets to destroy Tom Riddle's Diary respectively , Tosca Hufflepuff's Cup and Ravenclaw's Diadem.