—In an action to recover damages for personal injuries, etc., the plaintiffs appeal from an order of the Supreme Court, Orange County (Barone, J.), dated February 21, 1992, which denied their motion for leave to serve an amended complaint, and granted the defendants’ cross motion for summary judgment dismissing the complaint.
Ordered that the order is affirmed, with costs.
The plaintiffs alleged that, on December 11, 1988, the plaintiff Phyllis Garvin slipped and fell in the defendants’ parking lot as a result of the defendants’ negligence. In support of their cross motion for summary judgment dismissing the complaint, the defendants submitted excerpts from the depositions of both plaintiffs, which showed clearly that as of October 16, 1991, neither plaintiff knew what caused Ms. Garvin to fall. Mere speculation as to the cause of a fall, where there can be many causes, is fatal to a cause of action (see, Earle v Channel Home Ctr.,
