Showing Wonderland by Mark Chadbourn

The seventh in the series of original Doctor Who Novellas, Wonderland, a story featuring the Second Doctor, with companions Ben and Polly, and written by Mark Chadbourn. San Francisco 1967. A place of love and peace as the hippy movement is in full swing and everyone is looking forward to the ultimate festival: the human be-in. Summer, however, has lost her boyfriend, and fears him dead, destroyed by a new type of drug nicknamed Blue Moonbeam. Her only friends are three English tourists: Ben and Polly, and their mysterious guardian and friend the Doctor. But will any of them help Summer, and what is the strange threat posed by the Blue Moonbeams?