Echolocation

Of Ships And Sea Text

This spell allows the caster to send out a large variety of sound pulses and receive clear, three-dimensional representations of his underwater surroundings from the rebounding sound waves – just as a dolphin does. This process of echolocation gives the caster a very detailed impression of any object, creature, passageway, or structure in any direction within 300 feet. In addition, the caster can detect the presence of any nonmagically concealed or secret doors within range of this spell.

The caster can engage in normal conversation and even cast spells with verbal components while this dweomer is in effect, as long as he periodically sends out a burst of sound. Note that other marine creatures can easily hear such sound bursts, making it extremely difficult to sneak while using this spell. In addition, a silence spell temporarily negates the effect, although it will resume once the silence spell wears off or the caster moves out of the silenced area.

The caster has the option of focusing his sound bursts into a sonic wave that inflicts 5d6 points of damage on one creature, stunning it for 1d4 rounds. This use instantly ends the spell.

Because of this spell's high demand on the vocal cords, the caster is incapable of speech (including spellcasting) for one hour after the spell ends.