Double Trouble Squared

[shared copy] The Starbuck family is anything but ordinary. There are two sets of Starbuck twins: preteens Liberty and July, and their little sisters Charly and Molly. But even more extraordinary is the fact that all four children have the ability to teleflash-they can talk to each other without saying a word! It's a power that comes in handy whenever these adventurous kids are on the trail of a villian. When twins Liberty and July accompany their father on a business trip to London, a mysterious voice starts speaking through their teleflashing channels. Who is trying to contact them, and why ? Using the detective skills of their hero, Sherlock Holmes, the twins set out to solve a puzzle that takes them on an exciting journey through the streets of London.