Amongst the greatest by-products of Doctor Who’s revived success since 2005 has been the re-emergence of the ‘Classic Novels’ range, with recent literary instalments such as The Wheel of Ice and Shada proving qualified hits for fans new and old alike. With Harvest of Time, author Alistair Reynolds returns to the Third Doctor era in the midst of the show’s 50th Anniversary for a nostalgic, intergalactic adventure. It’s a shame, then, that Harvest is a somewhat inadequate endeavour in audio form, only likely to inspire fans to return to Jon Pertwee’s televised adventures in order to reassure themselves of their superior quality.

That Reynolds’ characterisations of those firm fan favourite constructs from the Pertwee days aren’t wholly consistent with what we remember certainly doesn’t build a strong foundation for the piece. Much as recent entries in the Eleventh Doctor’s New Series Adventures novel range have appeared to struggle with clearly defining their portrayal of Matt’s take on the Time Lord as opposed to Chris’ or David’s incarnations, so too do some of the colloquialisms and speech mannerisms of Reynolds’ Third Doctor seem more befitting of more recent incarnations than the temporarily Earth-bound 1970s take on the alien hero.

Such notable representational inaccuracies are made all the more striking when we consider that Harvest is set in conditions purely indicative of the aforementioned era of the programme. Still working with UNIT and Jo Grant, the Doctor’s encounters with the Master and the sinister extraterrestrial Sild feel as if they have been ripped out of a ‘lost’ adventure at the time. Given that Harvest is coming to retail in audiobook form during the 50th Anniversary year, one can assert it to be only natural that Reynolds reprises the most memorable elements of the Pertwee era, yet his dedication to producing a tale accurate to its dramatic context is arguably the undoing of the piece in terms of the lingering sense that there’s a general lack of narrative innovation on offer here.

To its credit, one notable factor of the audiobook version of Harvest lends it an air of superiority over its published source material. Geoffrey Beevers does a sterling job as the narrator of this particular release, his relish at the opportunity of portraying both a classic Doctor and another version of the Master clear from the outset. At the very least, Beevers ensures that the interest of the listener is rarely lost in the midst of the rather predictable and linear narrative thanks to accomplished differentiation between his various character portrayals in terms of dialect and speech patterns, as well as plenty of confident and varied levels of emphasis even in the more mundane moments of description and depiction.

If only Beevers was able to be afforded more engaging content on a regular basis by this ever-so-slightly abridged aural rendition of Reynolds’ latest Who text, the resulting impact of the product as a whole would not likely be as dissatisfying. Instead, he’s simply offered a storyline which rarely has any highlight moments, the most notable sequences ultimately being those where the book’s scribe manages to effectively capture the intricate relationships between Pertwee’s Doctor with the likes of the Brigadier and Jo. Certainly, the seamless manner in which the plot segues between the situations on Earth, in the realms of the Red Queen and elsewhere keeps things fresh from time to time, but it’s hardly enough to compensate for the general lack of momentum present as the audiobook progresses over the course of five discs.

What we’re left with overall, then, is a mixed bag to say the least. Without a charismatic and engaging narrator such as Beevers on hand to carry the weight of its in-depth science-fiction narrative, Harvest of Time would likely suffer far worse as a result of its lacklustre storyline and unfulfilling characterisations. Thankfully, with the dedicated ex-Master lending his vocal talents to this production, Harvest is presented to listeners in a digestible form that makes for a far more compulsive experience than it has any right to be.

A more apt title for the second instalment in Big Finish’s latest trilogy of Seventh Doctor adventures would perhaps be Starlight Treasury. For within this follow-up to Persuasion, the listener is offered a metaphorical vault of contributory delights which combine to form one of the production team’s strongest efforts yet. It’s rare that a reviewer can so fully complement an audio drama as to assert its shortcomings as purely negligible, yet in this particular case that’s precisely the situation which has presented itself.

What remains a surprise throughout the duration of the story is the effectiveness with which its scribe Matt Fitton develops upon what is a fairly traditional premise. The action picks up moments after the conclusion of Persuasion, with Sylvester McCoy’s Seventh Doctor, Tracey Child’s Klein and Christian Edwards’ Will all intent on discovering the whereabouts of the lost Persuasion device and its creator Kurt Schulk. Their search leads them to an intergalactic auction featuring a plethora of galaxy-threatening weaponry, forcing the TARDIS crew to engineer a devious heist in order to gain access to the ultimate prize.

Unless listeners manage to somehow experience Starlight Robbery without glancing at its cover art, they’ll already have noticed that the Sontarans are due a comeback in this piece. Sure enough, faster than you can yell ‘Atmos’, the classic adversaries make their entrance heard in the midst of the auction and pose an additionally dangerous dilemma for the Time Lord at its heart. Dan Starkey is rightly offered full vocal control over the various soldiers of this particular Legion and he manages to intelligently differentiate between the dialects and colloquialisms of each of the different soldier roles he inhabits. Naturally, there are instances where Starkey’s recent regular work as Strax on the show has an influence on his portrayal, yet this only serves to enhance his contribution to proceedings rather than acting in any detrimental manner.

Before the Rutans’ most notorious foes even take to the stage, though, this release’s finest asset is introduced in subtle but sublime fashion. Jo Woodcock takes on the role of the flirty and rather vivacious entrepreneur Ziv with a zestful and enriching energy that allows her to dominate each and every sequence she appears in, regardless of the extent to which she appears or indeed the level of challenge the dialogue places before her. Refreshing as it is to see McCoy in particular on such strong and consistent form as his incarnation of the Doctor, always the prospect of discovering fresh and invigorating new blood on-screen or in these audio releases is just as thrilling, doubly so in the case of the supremely talented Woodcock here.

Similarly unexpected and yet beneficial is Fitton’s capability to relax the arc stands of the 2013 Seventh Doctor trilogy so as to allow himself to convey a standalone, layered tale without the restraints of specific narrative elements holding back his own creative vision. Whereas Persuasion occasionally seemed confined by the expectations of the events it had to fulfil and pre-empt, Starlight Robbery serves as a great interlude before a presumably climactic confrontation of wits in the upcoming finale. Despite the return of Black And White’s elusive conman Garundel (played marvellously by Stuart Milligan once again) and the continuation of the search for Schultz’s masterpiece, there’s plenty of standalone content here that won’t likely leave newcomers to the range too confused as to exactly ‘what’s occurring’, in the elegant words of Gavin & Stacey’s Nessa.

Undoubtedly, the metaphorical glue which holds it all together is the intelligent structure that Fitton engineers as the backbone of his drama. At no stage in the four ‘episodes’ of the piece does any notable lapse in momentum occur, even in the more intricate and reserved exchanges between main and supporting characters aboard spaceships, storage crates and the various other modes of transportation which they hop aboard. Plot twists are dispensed equally in such a manner that listeners will frequently find themselves lulled into a false sense of security or foreknowledge, only to eventually discover that their understanding of events to come is minimal and inaccurate at the best of times.

If a minor inferior element of this second instalment must be uncovered, then it is arguable that a singular flaw lies in its climax. Fans of the Doctor Who stories broadcast in the show’s first decade may find themselves experiencing déjà vu as Starlight Robbery draws to a close, with a familiar spaceship cruiser’s interior sound effect employed in the final scene as a teaser of what’s to come next time. For this reviewer, the conclusion of Frontier In Space came to mind, although on the whole the effect of this supposed shortcoming is minimal, with the scene in question handled in such a manner that its dramatic impact is intense enough to justify its relative familiarity.

When Daleks Among Us does arrive in stores later this month, then, it faces a battle on dual fronts. On the one hand, writer Alan Barnes must engineer resolutions to narrative arcs such as the Klein mystery, the manipulation of the Persuasion machine and the foreboding trap which the titular antagonists and their creator have set for the Doctor. On the other hand, in following on from Starlight Robbery, Barnes acquires the unenviable task of matching or bettering what is to this reviewer’s mind one of the greatest single releases that Big Finish have produced since their inception. Starlight Robbery represents everything that makes the programme a success fifty years on- the intricate narratives, the accomplished performers, the supreme dramatic impact of it all- and without a doubt Fitton’s finest hour writing for the range. If you’ll pardon the pun, it’s stellar in every sense of the word, and for this reviewer Doctor Who’s 50th Anniversary Special has truly come early.