Invoke

The #invoke extended command allows you to activate certain objects. The only objects that can be activated this way are crystal balls and some artifacts, especially quest artifacts.

Some artifacts tire after you invoke them. In this case, you must wait before you can invoke them again. If you do it to soon, a message appears like "You feel that the Eye of the Aethiopica is ignoring you" and you must wait 3d10 more turns.

List of possible invocations

• The Eye of the Aethiopica: branchport to another dungeon branch
• The Eyes of the Overworld: provides enlightenment
• The Staff of Aesculapius: heals half HP damage, cures sickness, unblinds, unslimes
• The Orb of Detection: toggles invisibility on/off
• The Sceptre of Might: toggles conflict on/off
• The Magic Mirror of Merlin: gives random rumour, from the true file if blessed, the false file if cursed, or either if uncursed
• The Mitre of Holiness: boost in spell energy
• The Heart of Ahriman: levitation; you can stop this levitation with '>' at will, or by invoking the Heart again, providing no other levitation sources interfere.
• The Platinum Yendorian Express Card: charges objects like a scroll of charging with the same blessed/cursed status. Only Tourists can perform blessed charging
• The Orb of Fate: level teleport
• The Longbow of Diana: creates 7-16 uncursed arrows if uncursed, 7-21 blessed arrows if blessed, 6-11 cursed arrows if cursed
• The Master Key of Thievery: untraps boxes and doors with 100% success

Invoking a crystal ball is exactly the same as applying it.