Doctor Who and the Zarbi/Target novelisation 6th edition

Cover blurb
DOCTOR WHO lands his space-time machine Tardis on the cold, craggy planet of Vortis. The Doctor and his companions, Ian and Vicki, are soon captured by the ZARBI, huge ant-like creatures with metallic bodies and pincer claws; meanwhile Barbara falls into the hands of the friendly MENOPTERA who have come to rid Vortis of the malevolent power of the ZARBI...

'They're well-written books - adventure stories, of course, but with some thought... the creation of the character of the Doctor had a touch of genius about it.' Westminister Press