Dr. De Lang's Secret book

Dr. De Lang's Secret book (特力的秘密書): NPC in the MapleStory v113 database with stats, drops, sources and related quests.

Locations

• Home of the Missing Alchemist

Related quests

• Dr. De Lang's Underground Study
• The Key to the Secret Book
• Dr. De Lang's Secret Notes

Listed in the game client does not always mean released; check in game.