This story is part of Reading Champion, a series carefully linked to book bands to encourage independent reading skills, developed with Dr Sue Bodman and Glen Franklin of UCL Institute of Education (IOE)

It's the twins' birthday and they are very excited. But where are their presents? Mum and Dad have set a treasure trail, and the twins will have to solve the riddles to find them!

Reading Champion offers independent reading books for children to practise and reinforce their developing reading skills.

Fantastic, original stories are accompanied by engaging artwork and a reading activity. Each book has been carefully graded so that it can be matched to a child's reading ability, encouraging reading for pleasure.

Independent Reading 11 stories are the perfect introduction to first chapter books for children aged 6+ who are reading at book band 11 in classroom reading lessons.

The Key Stage 2 Reading Champion Books are suggested for use as follows:

• Independent Reading 11: start of Year 3 or age 7+
• Independent Reading 12: end of Year 3 or age 7+
• Independent Reading 13: start of Year 4 or age 8+
• Independent Reading 14: end of Year 4 or age 8+
• Independent Reading 15: start of Year 5 or age 9+
• Independent Reading 16: end of Year 5 or age 9+
• Independent Reading 17: start of Year 6 or age 10+
• Independent Reading 18: end of Year 6 or age 10+