London's greatest investigators are back with four new cases, facing fears from their pasts - and their futures!

Henry Gordon Jago (Christopher Benjamin) and Professor George Litefoot (Trevor Baxter) are Victorian London's resident Infernal Investigators. Since meeting each other in Doctor Who: The Talons of Weng-Chiang, they've defended the British Empire from the paranormal and the alien, with the help of loyal barmaid Ellie Higson (Lisa Bowerman) and the dashing Inspector Quick (Conrad Asquith).

Today they return for four brand new adventures, joined by their official autobiographer Carruthers Summerton (Toby Hadoke). Jago & Litefoot: Series 10 reunites our intrepid duo with old friend, older memories and gives them a glimpse of a terrifying future – with a finale that will change their world forever!

1: The Case of the Missing Gasogene by Simon Barnard & Paul Morris

Investigating the death of Sir Hartley Harecourt’s manservant, Jago and Litefoot are caught up in an intriguing locked-room mystery. It’s a mystery that involves strange experiments, mysterious scientific formulae, our heroes’ greatest admirer, and a missing soda siphon…

2: The Year of the Bat by Jonathan Morris

When a strange package is delivered to Professor Litefoot, he has no idea of the far-reaching implications. Soon Litefoot and Jago find themselves enmeshed in a series of events that began thirty years ago – events their younger selves have already been caught up in…

3: The Mourning After by James Goss

Litefoot is surprised to meet an old friend. But celebrations are rather muted as he and Ellie have just been to the funeral of Henry Gordon Jago. But is Jago really dead? Or has he somehow been transported into a nightmarish future? The truth is both elusive and deeply worrying…

4: The Museum of Curiosities by Justin Richards

At last Carruthers Summerton – the greatest admirer of Jago and Litefoot and their would-be biographer – gets to accompany his heroes on an investigation. But amongst the bizarre murders and strange clues lies a much deeper and far more dangerous mystery. Unsure who they can trust, Jago and Litefoot will find out the truth at the Museum of Curiosities…

Big Finish proudly presents Christopher Benjamin, Trevor Baxter, Lisa Bowerman, Conrad Asquith, Toby Hadoke, John Rowe, Rosanna Miles, Ewan Bailey, Alex Lowe, Blake Ritson, Tracy Wiles, Camilla Power and David Warner in Jago & Litefoot: Series 10, available to buy and download today.

The detectives return next month for a double-disc adventure in Jago & Litefoot & Strax – starring Dan Starkey as Strax the Sontaran, butler to the Paternoster Gang! Check out the trailer below.

Further investigations can be pre-ordered today with Jago & Litefoot: Series 11 released in April 2016. The pair's previous adventures can be found on their product page here.