The book is filled with words in a strange language, but at the very end is two pages written in common in the most precise hand you have ever seen listing all you need for the ritual. And it is a lot:
(All save the first must be from sigil's children)
The Gauntlet of Bane, taken by force
A tooth from 3 beast lords, rightfully won
Breath from a frost dog, given willingly
A sword of vengeance
The blood of the channeler
A mercenary's commander, a shield given after being free
The apparatus
Shtrahd's blood
dawnbringer
Azalin's finger
A dead elder brain
Valaakith's blessing on a person of sigil
Essence of Limbo
The sword of a planetar, struck by a diva's mace and blessed by a solar
the signal tower's flesh
The Timeline rewind undone
The Lady's mask
Six's Coat
The greatest ultroloth's sword
A person of sigil, as an archdevil
Bel's sword
A page from mammon's ledger
The sword of Kas
The crook of Rao
Fra'zz Urb'luu's staff
A curse from each of the elemental princes, with the blessings of their Prophets
The Broken Pieces of Myrkul's Censer
The broken Pieces of Bhaal's knife
Gruumsh's Eyepatch
A storm Orb from each of Arcadia's Masters
A tooth from each of tiamat's Head
A person of sigil blessed by a Blue greatwyrm and the primus at the same time
Bahaumut's tooth, ripped out by an archfiend
Mephistopiles' Blessing, given after his defeat
The wand of elysium's mistro and a weapon from each of the 12
The eye of the man who's skull adorns orcuses' wand, willingly given
The participation in the ritual of Valeska Drakov, Each of the former Grand Makers, Erasmus, Rudolph, Ivan Dyslina, Firan Zal'honan, The weathermay-Foxgrove sisters, Hazalin, A Rakasha, A red abishi, The queen of the seelie and unseelie fae