Doctor Who star David Tennant has donated his personal script from episode one of the current BBC series to an Edinburgh book sale.
David Tennant is supporting the sale at his father's church
The script, which he has autographed, is being given to next month's Christian Aid sale in Edinburgh.
The actor gave the valuable script to St Andrew's and St George's Church in George Street, where his father Sandy was once minister.
Sale organisers have yet to put a price on the script.
The Very Reverend Dr McDonald, a former kirk moderator, said his 35-year-old son hoped it would raise a lot of money for the sale.
"He is particularly interested in the work of the special sale at St Andrew's and St George's."
The charity event, which opens on 13 May, is expected to create "enormous interest" among collectors, followers and fans of the series.
Sir Brian McMaster, Edinburgh International Festival director, will be the patron of this year's sale.
The book sale was first launched 32 years ago and is now the UK's biggest single fundraising event for Christian Aid. It has raised more than £1m.
More than 50 Scottish authors have already donated copies of their own work to this year's sale, including the late Muriel Spark who sent a signed copy of her final novel to the sale shortly before her death at Easter.
Also on sale will be an 1857 first edition of David Livingstone's Missionary Travels and Researches in South Africa, and cartoons by playwright James Bridie.
The first series of Dr Who with David Tennant was watched by 8.3 million viewers and was about a futuristic plague farm run by evil cat people.