Forevercraft
Grimoire of Create Spellstone
Common, Book, item level 34, item 5721
Changed from Classic: the tooltip differs on the highlighted lines below.
Grimoire of Create Spellstone
Book
Classes: Warlock
Requires Level 34
Use: Creates a Spellstone which can be used to enchant your weapon with Shadow, increasing your spell haste by 1% and the damage done by your Shadow spells by up to 14. Conjured items disappear if logged out for more than 15 minutes.
"Teaches Create Spellstone."
Sell Price: 30s
Changed from Classic (see below).
Classic's version
Book
Classes: Warlock
Requires Level 34
Use: Teaches Create Spellstone.
Sell Price: 30s