# What is the range of the Knock ritual?

The KnockDDI ritual does not specify anything for range.

Can you use the ritual to unlock a door that you cannot touch?

Can you use the ritual to unlock a door that you cannot see?

Can you use the ritual to unlock a door that is visible at the end of a hallway without approaching it?

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The Knock ritual gives special details on using it to "undo bolts and bars you couldn't normally reach" with a DC 20 Arcana check. That suggests that the ability to "normally reach" the affected locks is part of the spell's typical use.