LONDON – ”The Curious Incident of the Dog in the Night-Time,” the National Theater’s highly acclaimed adaptation of Mark Haddon’s bestselling novel, will transfer to the West End’s Apollo Theater this spring.Adapted by Simon Stephens (“Harper Regan”) and directed by Marianne Elliott (“War Horse”), the SRO production opened Aug. 2 at the NT’s Cottesloe Theater to unanimous raves. Its HD cinema broadcast as part of the National’s NT Live series was seen by over 40,000 people in the UK alone. Luke Treadaway again leads the cast, which also will include holdovers Matthew Barker, Niamh Cusack, Sophie Duval, Rhiannon Harper-Rafferty, Nick Sidi and Howard Ward. Further cast details will be announced soon. Originally planned to have a further life in a nontraditional “found space,” the in-the-round production will be re-configured for its West End transfer by the show’s creative team with sets and costumes by Bunny Christie, lighting by Paule Constable (“War Horse”) and video design by Finn Ross. It features movement by Scott Graham and Steven Hoggett (“American Idiot,” “Once”), music by Adrian Sutton and sound by Ian Dickinson. Haddon’s original 2003 novel about a mystery solved by a young mathematical genius with behavioral difficulties has been translated into 44 languages, won 17 international awards and sold over two million copies. “Curious Incident” begins West End performances March 1 prior to a March 12 opening. Given the title’s success in the U.K. and the recent establishment of a New York office for the National Theater, the show is widely considered to have the potential for a Broadway transfer, although no specifics have yet been nailed down.