You would imagine from this comment that "the books" are some hidden tome, locked away in a cupboard in the Civic Centre and that when the new Council Administration was elected in May they were then presented with a key so that they could unlock this secret information.
In fact the opposite is true. You have full access to all the financial information as a Councillor and indeed a responsibility to be aware of the state of the Council's finances. All Councillors are briefed by city officers, all the figures are presented in detail on the City Council website and it was only in February that every Councillor voted on budget proposals for the Council. Labour produced their own budget this year so you would have thought that they must known what they were doing.
When Labour made all their promises in the run up to the election they knew they had no intention of keeping them. Now they are in power they plead ignorance as their excuse.