@JeremyECrawford Do wizards need 24 consecutive hours to write a spell in the spellbook?
— Alex Clark (@adclark104) December 9, 2015
See the "Your Spellbook" sidebar in the PH for information on copying spells into a spellbook. #DnD https://t.co/PJZYO5LrtE
— Jeremy Crawford (@JeremyECrawford) December 11, 2015