(b) After a valid return of service, each player alternately
thereafter shall strike the ball in the same manner as on the return of
service, except that it may be volleyed. The player failing to so
return the ball shall lose the point.
(c) A ball striking the ceiling or lights or on or above any court
boundary line on the fly shall be ruled out of court; if a ball should
strike the back wall on or above the 4'6" line after having bounced, it
shall continue to be in play. If a ball having bounced should go into
the gallery or strike any construction which alters its course, a let
shall be called.
(d) If a ball before the second bounce hits the front wall above
the telltale for the second time it is still in play.
(e) In an effort to return the ball to the front wall by first
hitting to the back wall, the ball may not be played to the back wall
unless it has first struck the back wall, and must be so struck as to
hit the back wall below the 4'6" line.
(f) A player may not hit a ball twice during a stroke, but, while
the ball is still in play, it may be struck at any number of times.

8. LET
A "let" is the stopping of play and the playing over of the point.
(a) In all cases, a player requesting a let must make his request
before or in the act of hitting the ball. If a let is requested after
the ball has been hit, it shall not be granted.
(b) If a player endeavoring to make his play in proper turn is
interfered with so as to prevent him from making such play as he would
without such interference, or if the striker refrains from striking at
the ball because of fear of hitting his opponent, there shall be a let
whether the ball has been hit by him or not.
(c) A player shall not be entitled to a let because his opponent