A fireball
spell detonates with a low roar and deals 1d6 points of fire
damage per caster
level (maximum 10d6) to all creatures within the
area. Unattended objects also take this
damage. The explosion creates no concussive force.
The caster points his or her finger and determines the
range (distance and height) at which the fireball is to
burst. A glowing, pea-sized bead streaks from the caster and, unless it impacts upon a material body or solid barrier prior to attaining the prescribed
range, bursts into the fireball at that point (an early impact results in an early detonation). If the caster attempts to send the bead through a narrow passage the caster must "hit" the opening with a successful ranged
touch attack or else the bead strikes the barrier and detonates prematurely.
The fireball sets fire to combustibles and damages objects in the
area. It can melt metals with a low melting point. If the
damage caused to an interposing barrier shatters or breaks through it, the fireball may continue beyond the barrier if the
area permits; otherwise it stops at the barrier just as any other
spell effect does.