Secret page alters the actual contents of a page so that they
appear to be something entirely different. Thus, a map can be
changed to become a treatise on burnishing ebony walking sticks.
The text of a spell can be changed to show a ledger page or even
another spell. Explosive runes or sepia snake sigil can be cast
upon the secret page.
A comprehend languages spell alone cannot reveal the secret
pages contents. The character is able to reveal the
original contents by speaking a special word, perusing the actual
page, and then returning it to its secret page form at will. The
character can also remove the spell by double repetition of the
special word. A detect magic spell reveals dim magic on the page
in question but does not reveal its true contents. True seeing
reveals the presence of the hidden material but does not reveal
the contents unless cast in combination with comprehend
languages. Secret page can be dispelled, and the hidden writings
can be destroyed by means of an erase spell.