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Mirage Arcana


School illusion (glamer); Level bard 5, sorcerer/wizard 5

CASTING

Casting Time 1 standard action
Components V, S

EFFECT

Area one 20-ft. cube/level (S)
Duration concentration +1 hour/ level (D)

By the way...
Ships are considered structures for the purposes of this spell.

Source Skull & Shackles Player's Guide