Peter Brosius had a problem.
Brows knitted, the usually ebullient Children's Theatre artistic director stood on the semi-lit stage and peered into a coffin-sized trap door that serves as the rabbit hole in "Alice in Wonderland," opening Friday at CTC.
Brandon Brooks, a teenager who plays the leaping White Rabbit, had come perilously close to hitting the edges of the trap door as he dove feet-first off a seesaw toward a "crash pad" positioned beneath the stage.
"He's gonna clip his elbows and get hurt," said Brosius, shaking his head. "We can't have that."
While fight choreographer Annie Enneking showed Brooks how to make himself more compact, actor Reed Sigmund pulled back the seesaw, which he anchors while Brooks jumps.
Then it was time to run the scene again. Alice (Anna Evans) spots the White Rabbit and chases him until he falls down the hole and she follows.
It's just one of many details to be worked out during a 12-hour technical rehearsal for "Alice" — one of the company's biggest shows in recent years, both in terms of cast (30 actors) and ambition. A Children's Theatre favorite first staged there in the 1960s, it is being directed by Brosius for the first time.
For Brosius, his cast and his creative team, the balance is in "creating the illusion of danger so that it feels real to our audience but making sure that everybody is 100 percent safe," he said. "That means that we spend an hour and a half on a scene that lasts 46 seconds.