Detect Untruth - Savant (Reversible)

A savant employing this spell is able to note an untruth spoken by a creature, including even a minor evasion of the truth.

The reverse of the spell, speak untruth, allows the savant to lie or evade the truth without being discovered by any spell of 4th level or less. The material component is the forked tongue of a snake.

Notes: Restricted to savants and sages. Generally intended for NPC use, though the DM might allow it for a non-savant of at least 9th level who has accumulated non-weapon proficiencies in subjects suitable for a sage (philosophy, reason, epistemology, and so on).