•••• Flowing Wall

Tales of vampires’ inability to cross running water may have derived in part from garbled accounts of this power in action. The thaumaturge can animate water to an even greater degree than is possible with the use of Prison of Water, commanding it to rise up to form a barrier impassable to almost any being.
System: The character touches the surface of a standing body of water; the player spends three Willpower points and the normal required blood point and rolls normally. Successes are applied to both width and height of the wall; each success “buys” 10 feet/three meters in one dimension. The wall may be placed anywhere within the character’s line of sight, and must be formed in a straight line. The wall lasts until the next sunrise. It cannot be climbed, though it can be flown over. To pass through the barrier, any supernatural being (including beings trying to pass the wall on other levels of existence, such as ghosts) must score at least three successes on a single Willpower roll (difficulty 9).