David E. Boston

When a cryptic note is passed to young Bert Hale by a stranger, he and his three friends inadvertently hold the key to unravelling the sinister plot to assassinate a Russian premier visiting Los Angeles.

A missing formula, a defecting Eastern European scientist kidnapped, car chases, foot chases, air chases, the British secret service, and a couple of American tourists caught right in the middle.

A town is terrorised by a monster that was created by local environmental pollution.

When a cryptic note is passed to young Bert Hale by a stranger, he and his three friends inadvertently hold the key to unravelling the sinister plot to assassinate a Russian premier visiting Los Angeles.

A missing formula, a defecting Eastern European scientist kidnapped, car chases, foot chases, air chases, the British secret service, and a couple of American tourists caught right in the middle.

A town is terrorised by a monster that was created by local environmental pollution.