This set contains 12 brand new Collins Big Cat non-fiction titles for Key Stage 2 readers publishing in May 2017. Containing a range of exciting non-fiction covering different topics, the Set includes 4 Copper, 4 Topaz and 4 Ruby readers.The Collins Big Cat titles included in the Set are: Tsunamis Band 12/CopperYou Are Here, Maps and Why We Use Them Band 12/CopperOn the Track Band 12/CopperThe Making of Mozart Band 12/CopperA Finders' Guide to Rocks, Fossils and Soil Band 13/TopazLiving in an Earthquake Zone Band 13/TopazThe Life Cycle of a Polar Bear Band 14/RubyCity Tours Band 14/RubyVikings in Britain Band 14/RubyWhat's up with Time Band 14/Ruby