Glasgow-based designer Pearse O'Halloran has created a 'ghostly' online video to help promote WildHearts charity's 2011 WolfTrek.
The outdoor challenge takes place across 45 miles of Highland wilderness, from Forres on the Moray Firth Coast all the way to monstrous Cairngorms.
Participants can also choose to take on the Midnight March, a 17 mile trek from Forres to the shores of Lochindorb.
The video focuses on the WolfTrek's "ghostly" night-time elements.
WolfTrek takes place across 6 and 7 August.
Over the past ten years O'Halloran has worked with a range of clients including Cycling Scotland, Glasgow City Council, North Lanarkshire Council, North Ayrshire Council, Glanbia Ireland, Glasgow Anti Racist Alliance, Concern Worldwide, Pentagon Freight Services.