This was posted before A.E. specified the key length, just to highlight what happens if you don't :P

The near-pangram "key" is:

khomeaxfdijyuglvrtbnzpc

And the "message", revealing what we should do if the Earth ever meets its impending doom, is...

GLASS WOOL CAN SAVE DAY

This was posted before A.E. specified the key length, just to highlight what happens if you don't :P

The near-pangram "key" is:

qtmowadvxsrcgupfjhznbly

And the "message", revealing what we should do if the Earth ever meets its impending doom, is...

GLASS WOOL CAN SAVE DAY

This is a post to highlight what happens when you don't specify a key length. :P

The "key" is:

khomeaxfdijyuglvrtbnzpc

And the "message", revealing what we should do if the Earth ever meets its impending doom, is...

GLASS WOOL CAN SAVE DAY

This was posted before A.E. specified the key length, just to highlight what happens if you don't :P

The near-pangram "key" is:

khomeaxfdijyuglvrtbnzpc

And the "message", revealing what we should do if the Earth ever meets its impending doom, is...

GLASS WOOL CAN SAVE DAY